A breakdown of the review per specifications

Ingress Protection (Ip) Rating

Technics EAH AZ80 ipX4

Xiaomi Redmi Buds 4 Pro ip54

IP ratings refer to the level of protection offered by a casing, against dust and liquids. In the format of IPXX, 'X' represents a number The first value of the IP rating means protection against solids say dust, followed by the one that refers to resistance against liquids (water).

Scoring IPX4, the Technics EAH AZ80's rating for solids indicates that no data available to specify a protection rating, and the second value of 4 means that they can withstand low pressure spray similar to that of a shower head when tilted at 180° for 10 minutes.

Compared to the Technics EAH AZ80, Xiaomi Redmi Buds 4 Pro have a rating of IP54 meaning that ingress of dust is not totally prevented but dust does not enter in harmful quantities to interfere with the correct operation or impair safety and that of liquids is that, they both have the same rating against liquids

Weight

Technics EAH AZ80 14g

Xiaomi Redmi Buds 4 Pro 10g

The Technics EAH AZ80 have a weight of 14g . We consider a lower weight better for the reason that lighter devices are easier to carry.

Xiaomi Redmi Buds 4 Pro, at 10g weigh less than the Technics EAH AZ80 by -4g

Has No Wires Or Cables

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

For a device to be true wireless it should have no wires linking any part of the device together, Technics EAH AZ80 are true wireless for this matter since they have no cables. This is a key distinction as some wireless earbuds have cables connecting the two earbuds .

Xiaomi Redmi Buds 4 Pro also is true wireless because it doesn't have cables linking the 2 earbuds together.

Sweat Resistance

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

Technics EAH AZ80 are resistant to sweat

Xiaomi Redmi Buds 4 Pro's resistance to sweat makes both devices ideal for use during long-distance running, marathons, training in workout bodysuits, etc

Is Dust Proof And Water-Resistant

Technics EAH AZ80 ✗

Xiaomi Redmi Buds 4 Pro ✓

The Xiaomi Redmi Buds 4 Pro are both dustproof and water-resistant.

Has An Earbud Foam

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✗

The earbud foam is made to be ultracompact and lightweight, with almost no interference with earrings, spectacles, hats, or hairstyles. The Technics EAH AZ80 have an earbud foam for some people it is more comfortable than the in-ear foam.

Has Stereo Speakers

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

Technics EAH AZ80 have stereo speakers, devices with stereo speakers deliver sound from independent channels on both left and right sides, this creates a richer sound and a better listening experience.

The Xiaomi Redmi Buds 4 Pro also have stereo speakers

Technics EAH AZ80
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Has Active Noise Cancellation (Noise Control)

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

ANC uses more advanced kind of tech to actively cancel noise. How it works, it detects and analyzes the sound pattern outside and inside the earbud and generates a mirror signal to counter it. In simple terms, it's like taking +1 (noise) and producing -1 (inverted noise) giving 0 hence "diluting" the noise.

The Technics EAH AZ80 have Active Noise Cancellation enabling you to listen at lower levels of volume, good for your ears since you don't need to crank up the device volume to overcome background noise.

The Xiaomi Redmi Buds 4 Pro too have ANC making either of the earbuds ideal for flights and rush hour travels. Each operate with different noise cancellation settings, pick the setting that suits your travel or that enhances your relaxation time.

Has Passive Noise Reduction

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

Technics EAH AZ80 sit well in place, creating a sound covering that tones down background sounds while preventing the earbuds music from leaking out .

Both Xiaomi Redmi Buds 4 Pro, and Technics EAH AZ80 have passive noise reduction this implies that both limit ambient noise without using technology to cancel it out.

Driver Unit Size

Technics EAH AZ80 10mm

Xiaomi Redmi Buds 4 Pro 11mm

Technics EAH AZ80 have a unit size of 10mm in diameter, bigger drivers are more powerful, therefor producing better bass. A driver unit is the component that produces sound in the earbuds, its size corellates with the loudness of the device.

Xiaomi Redmi Buds 4 Pro driver unit is 11mm in diameter, making them have a larger driver unit than that of Technics EAH AZ80 by 1mm , many people have a misconception that driver units of a bigger size automatically produce better sound quality.

However, large drivers usually have difficulty producing high frequencies so yeah, larger drivers are capable of generating louder sound, but this does not indicate that they produce better quality sound.

Lowest Frequency

Technics EAH AZ80 20hz

Xiaomi Redmi Buds 4 Pro 20hz

The Technics EAH AZ80's lowest frequency is at 20Hz, low-frequency response inidcates how well an audio component generates low frequencies that can be heard, and if it alters the signal on its way through.

Xiaomi Redmi Buds 4 Pro's lowest frequency is at 20Hz, this means that both devices can make sound with equal bass

Highest Frequency

Technics EAH AZ80 40,000hz

Xiaomi Redmi Buds 4 Pro 40,000hz

The Technics EAH AZ80's highest frequency is at 40,000Hz, high-frequency response measures if and how well a particular audio component generates high recognizable frequencies and if it changes to the signal while at it.

Xiaomi Redmi Buds 4 Pro's highest frequency is at 40,000Hz, this means that both devices generate equal treble

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Battery Life

Technics EAH AZ80 7.5hours

Xiaomi Redmi Buds 4 Pro 9hours

Technics EAH AZ80's battery life is 7.5 hours, these last longer than 5 hours of listening which is considered average before recharge. A device's battery life is usually given by the manufacturer, and with longer battery life, you get to use it for longer and have to charge the device less often.

Xiaomi Redmi Buds 4 Pro's battery life is more than that of Technics EAH AZ80 by 1.5 hours . Every time you recharge your device, they get a little less listening time. The effect is barely noticeable at first, but over time, your wireless earbuds will no longer play for long like they used to.

Battery Life Of Charging Case

Technics EAH AZ80 17.5hours

Xiaomi Redmi Buds 4 Pro 29hours

The battery life of the charging case is given by the vendor, and the Technics EAH AZ80's case is said to have a charge of 17.5 hours. A charging case with more battery hours enables you to recharge your earbuds on the go many times before having to recharge the case itself.

Xiaomi Redmi Buds 4 Pro's charging case has a battery life of 29 hours, more than that of Technics EAH AZ80 by 11.5 hours

Charge Time

Technics EAH AZ80 2hours

Xiaomi Redmi Buds 4 Pro 1hours

It takes 2 hours to fully charge the Technics EAH AZ80's battery. It is recommended to fully charge the battery before using the earbuds for the first time.

Xiaomi Redmi Buds 4 Pro takes 1 hours to fully charge the battery, less than that of Technics EAH AZ80 by 1 hours

Battery Power

Technics EAH AZ80 85mah

Xiaomi Redmi Buds 4 Pro 53mah

Technics EAH AZ80's battery capacity is 85mAh, battery capacity, shows the amount of electrical energy that a battery can store.

Xiaomi Redmi Buds 4 Pro's battery power is 53mAh. less than that of Technics EAH AZ80 by 32mAh

Has Wireless Charging

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✗

The Technics EAH AZ80, the device supports wireless charging. To charge the earbuds, you simply place down on a compatible charging pad.

Has A Battery Level Indicator

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

The Technics EAH AZ80 have a battery level indicator, an indicator notifies you when the earbuds has a low battery. The battery indicator lights display the charging state of your earbuds and case.

Xiaomi Redmi Buds 4 Pro too have a battery level indicator, these allow you tell the charging state of your earbuds, whether fully charged, or having a low battery.

Technics EAH AZ80
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Has Usb Type-C

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

The Technics EAH AZ80 have USB TYPE-C, a standard connector for transmitting both data and power through a single cable.

Xiaomi Redmi Buds 4 Pro too have USB TYPE-C. This USB-C plug is part and parcel of most current laptops, phones, and tablets.

Bluetooth Version

Technics EAH AZ80 v5.3

Xiaomi Redmi Buds 4 Pro v5.3

Technics EAH AZ80 have Bluetooth version of 5.3, Bluetooth is a wireless technology standard that allows data movement between devices placed in range, using short-wavelength, ultra-high frequency radio waves.

Xiaomi Redmi Buds 4 Pro has a Bluetooth version of 5.3, equal to that of the Technics EAH AZ80 . Newer versions provide faster data transfers.

Maximum Bluetooth Range

Technics EAH AZ80 10meters

Xiaomi Redmi Buds 4 Pro 10meters

The Technics EAH AZ80 have a 10meters distance connecting via Bluetooth.

Xiaomi Redmi Buds 4 Pro have a maximum range of 10meters, equal to that of the Technics EAH AZ80

Has Aac

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

Technics EAH AZ80 support AAC, a codec that is used for Bluetooth audio. It supports 24-bit audio at 250kbps. Because it uses psychoacoustic modeling, it can provide better results than other codecs at the same bit rate.

Since its the highest quality codec that any Bluetooth-supporting Apple product supports, the Technics EAH AZ80 will work fine with your iPad. If you intend on using these with Android , ensure that they also support aptX HD, LDAC, or LHDC as well.

The Xiaomi Redmi Buds 4 Pro support AAC as well. Designed to be the successor of the MP3 format, AAC generally achieves higher sound quality than MP3 encoders at the same bit rate.

Has Ldac

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

The Technics EAH AZ80 support LDAC, a codec developed by Sony which allows streaming high-resolution audio over Bluetooth connections at up to 990 kbps at 32 bit/96 kHz. It is capable of a very high bitrate of 990kbps, which provides high-resolution audio.

Xiaomi Redmi Buds 4 Pro support it as well, LDAC, can automatically change to a lower bitrate of 330kbps or 660kbps for stability.

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Number Of Microphones

Technics EAH AZ80 8only

Xiaomi Redmi Buds 4 Pro 6only

Technics EAH AZ80 have 8 microphones.

Xiaomi Redmi Buds 4 Pro microphones are 6, less than that of Technics EAH AZ80 by 2 . More microphones result in better sound quality and help the earbuds to filter out background sounds.

Has A Noise-Canceling Microphone

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

Technics EAH AZ80 use a noise-canceling type of microphone, these microphones are made to filter out noise from the desired sound.

The Xiaomi Redmi Buds 4 Pro too use a noise-canceling type of microphone. Especially useful in noisy environments.

Technics EAH AZ80
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Has Ambient Sound Mode

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

Technics EAH AZ80 support ambient sound mode, which uses microphones to pass through ambient sound so that they can still be heard even while wearing the earbuds

The Xiaomi Redmi Buds 4 Pro support ambient sound mode as well, it’s useful when you want to listen to music while being aware of your surrounding, say you’re having a jog but would still want to be able to hear traffic.

Has In/On-Ear Detection

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

The Technics EAH AZ80 support in/on-ear detection, the sensors in the earbuds can detect when removed from your ears .

The Xiaomi Redmi Buds 4 Pro too support in/on-ear detection, automatically pauses your music, or audiobook when you remove earbuds from your ears improving your listening experience.

Has Find Earbuds Feature

Technics EAH AZ80 ✗

Xiaomi Redmi Buds 4 Pro ✓

If lost in a room, or can't be found in your bag, Xiaomi Redmi Buds 4 Pro have a find earbuds feature.

Supports Fast Charging

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

Technics EAH AZ80 support fast charging. Usually, technologies like MediaTek’s Pump Express, are used to lower the time it takes to charge a device.

The Xiaomi Redmi Buds 4 Pro too support fast charging. It's very similar to regular charging, just that the battery fills up much faster. Say, with Quick Charge 3.0, the battery is charged to 50% in 30 minutes.

Multipoint Count

Technics EAH AZ80 3only

Xiaomi Redmi Buds 4 Pro 2only

The Technics EAH AZ80 support multipoint of 3 connections, the multipoint feature allows you to link to more than one Bluetooth device and switch between them. Say, you can seemlessly switch calls from one device to another without manually disconnect and reconnect.

The Xiaomi Redmi Buds 4 Pro have a multipoint count of 2, less than that of Technics EAH AZ80 by 1 only . Bluetooth multipoint is useful because you can be on one call and not miss notifications from another device.

Has A Mute Function

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

The Technics EAH AZ80 have a mute function, they have the option to mute/unmute a conversation directly from the earbuds.

The Xiaomi Redmi Buds 4 Pro also have the mute function. It means that you can turn off the earbuds' microphone, but you can still hear the other party's voice.

Control Panel Placed On A Device

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

The Technics EAH AZ80, so you can access the volume control, pause, play, mute, etc whichever functions are supported on the earbuds.

Xiaomi Redmi Buds 4 Pro too have a control panel on them.

Warranty Period

Technics EAH AZ80 1years

Xiaomi Redmi Buds 4 Pro ✗

Technics EAH AZ80 have a warranty period of 1 Years, the period of time that warrant free repair and adjustment services in case of a malfunction occurring under normal use that has followed instruction manuals.

Has Voice Prompts

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

The Technics EAH AZ80 have voice prompts. With voice prompts, you receive information through audio messages, like if there is an issue with the connection.

The Xiaomi Redmi Buds 4 Pro also have voice prompts meaning the earbuds notifies you if the battery is low, and you need to recharge them.

Travel Bag Is Included

Technics EAH AZ80 ✓

Xiaomi Redmi Buds 4 Pro ✓

The Technics EAH AZ80 come with a special pouch. Carrying earphones without a case, or putting them in your pockets without a cover can easily put them at risk of getting damaged.

Xiaomi Redmi Buds 4 Pro too have a travel bag included, which is useful for safe transportation.

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Category	Features	Technics EAH AZ80	Xiaomi Redmi Buds 4 Pro
DESIGN	ingress protection (ip) rating	ipX4	ip54
	weight	14g	10g
	has no wires or cables	✓	✓
	sweat resistance	✓	✓
	is dust proof and water-resistant	✗	✓
	has an earbud foam	✓	✗
	has stereo speakers	✓	✓
SOUND QUALITY	has active noise cancellation (noise control)	✓	✓
	has passive noise reduction	✓	✓
	driver unit size	10mm	11mm
	lowest frequency	20hz	20hz
	highest frequency	40,000hz	40,000hz
POWER	battery life	7.5hours	9hours
	battery life of charging case	17.5hours	29hours
	charge time	2hours	1hours
	battery power	85mah	53mah
	has wireless charging	✓	✗
	has a battery level indicator	✓	✓
CONNECTIVITY	has usb type-c	✓	✓
	bluetooth version	v5.3	v5.3
	maximum bluetooth range	10meters	10meters
	has aac	✓	✓
	has ldac	✓	✓
MICROPHONE	number of microphones	8only	6only
MICROPHONE	has a noise-canceling microphone	✓	✓
EXTRAS	has ambient sound mode	✓	✓
	has in/on-ear detection	✓	✓
	has find earbuds feature	✗	✓
	supports fast charging	✓	✓
	multipoint count	3only	2only
	has a mute function	✓	✓
	control panel placed on a device	✓	✓
	warranty period	1years	✗
	has voice prompts	✓	✓
	travel bag is included	✓	✓
		See price on Amazon	See price on Amazon

A Review By Comparison of the Technics Eah Az80 Vs. Xiaomi Redmi Buds 4 Pro

Reasons why you might like the Technics EAH AZ80

Reasons why you might like the Xiaomi Redmi Buds 4 Pro

A summary of the review by feature comparison

A breakdown of the review per specifications

Design

Ingress Protection (Ip) Rating

Weight

Has No Wires Or Cables

Sweat Resistance

Is Dust Proof And Water-Resistant

Has An Earbud Foam

Has Stereo Speakers

Sound Quality

Has Active Noise Cancellation (Noise Control)

Has Passive Noise Reduction

Driver Unit Size

Lowest Frequency

Highest Frequency

Power

Battery Life

Battery Life Of Charging Case

Charge Time

Battery Power

Has Wireless Charging

Has A Battery Level Indicator

Connectivity

Has Usb Type-C

Bluetooth Version

Maximum Bluetooth Range

Has Aac

Has Ldac

Microphone

Number Of Microphones

Has A Noise-Canceling Microphone

Extras

Has Ambient Sound Mode

Has In/On-Ear Detection

Has Find Earbuds Feature

Supports Fast Charging

Multipoint Count

Has A Mute Function

Control Panel Placed On A Device

Warranty Period

Has Voice Prompts

Travel Bag Is Included

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