A breakdown of the review per specifications

Ingress Protection (Ip) Rating

Sennheiser CX 500BT IPX4

1More Aero IPX5

Ingress protection ratings is the level of protection offered by an enclosure, against dust and water. The letters 'IP' are followed by two values The first value of the IP rating represents protection against solids such as dust, followed by the one that refers to protection against liquids (water).

Having a value of IPX5, the 1More Aero's rating for solids indicates that no data available to specify a protection rating, and the second number of 5 means that they can withstand medium pressure jet that's 6.3mm diameter, similar to garden hose from any angle for 3 minutes at a distance of 2.5 to 3 metres.

Compared to the 1More Aero, Sennheiser CX 500BT have a rating of IPX4 meaning that we are not yet certain of their rating with solids (dust) and that of liquids is that, Sennheiser CX 500BT has a lower liquid rating than 1More Aero

Weight

Sennheiser CX 500BT 12g

1More Aero ✗

The Sennheiser CX 500BT have a weight of 12g . We consider a lower weight better because lighter devices are more comfortable to move with.

Has No Wires Or Cables

Sennheiser CX 500BT ✓

1More Aero ✓

True wireless devices have no cables linking any part of the device together, 1More Aero are true wireless for this case since they don't have wires. This is a major difference since wireless earbuds have cables linking the 2 earbuds together.

Sennheiser CX 500BT also is true wireless since it has no wires connecting the two earbuds together.

Sweat Resistance

Sennheiser CX 500BT ✓

1More Aero ✓

1More Aero are resistant to sweat

Sennheiser CX 500BT's resistance to sweat makes both devices ideal for use during long-distance running, marathons, training in workout bodysuits, etc

Has Stereo Speakers

Sennheiser CX 500BT ✓

1More Aero ✓

1More Aero have stereo speakers, devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better listening experience.

The Sennheiser CX 500BT also have stereo speakers

Sennheiser CX 500BT
See price on Amazon

Has Active Noise Cancellation (Noise Control)

Sennheiser CX 500BT ✓

1More Aero ✓

ANC uses advanced kind of tech to actively counter noise. How it works, it studies the sound pattern outside and inside the earbud and generates a mirror signal to cancel it out. In simple terms, it's like taking +1 (sound from your surrounding) then producing -1 (counter sound by the device) to make zero thus "diluting" the noise.

The 1More Aero have Active Noise Cancellation allowing you to listen at lower volume levels, good for your ears as you don't need to crank up the earbuds volume to outcompete background noise.

Sennheiser CX 500BT too have Active Noise Cancellation making either of the earbuds ideal for flights and morning commutes. The 1More Aero and Sennheiser CX 500BT work with different noise cancellation settings, pick the noise cancellation type that you prefer for commute or that enhances your relaxation time.

Has Passive Noise Reduction

Sennheiser CX 500BT ✓

1More Aero ✓

The 1More Aero sit well in place, creating an acoustic seal that reduces your environment sounds while preventing the earbuds music from leaking out at the same.

Both Sennheiser CX 500BT, and 1More Aero have passive noise reduction which implies that both limit ambient noise without using technology to cancel it out.

Driver Unit Size

Sennheiser CX 500BT ✗

1More Aero 10mm

The 1More Aero driver unit is 10mm in diameter, the bigger the unit the more powerful, therefor producing better bass. The driver unit is the component that makes sound in the earbuds, the unit size corellates with the loudness of the earbuds.

Lowest Frequency

Sennheiser CX 500BT 5Hz

1More Aero 20Hz

1More Aero's lowest frequency is at 20Hz, low-frequency response inidcates how well a particular audio component generates low audible frequencies and if it makes any changes to the signal on its way through.

Sennheiser CX 500BT's lowest frequency is at 5Hz, this implies that Sennheiser CX 500BT produce a juicier bass than the 1More Aero

Highest Frequency

Sennheiser CX 500BT 21000Hz

1More Aero 20000Hz

1More Aero's highest frequency is at 20000Hz, high-frequency response indicates how well a particular audio component generates high human frequencies and if it makes any adjustments to the signal while at it.

Sennheiser CX 500BT's highest frequency is at 21000Hz, this implies that Sennheiser CX 500BT generate a clearer and crispier treble than the 1More Aero

Sound Pressure Level

Sennheiser CX 500BT 94dB/mW

1More Aero ✗

SPL, is the level of pressure of sound, in decibels, dB, Sennheiser CX 500BT's measurement is 94dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source.

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Battery Life

Sennheiser CX 500BT 8hours

1More Aero 7hours

The 1More Aero's battery life is 7 hours, these last longer than 5 hours of listening which is considered average for a single charge. A device's battery life is usually given by the manufacturer, and with more battery hours, you get to use it for longer and requires fewer chargings.

Sennheiser CX 500BT's battery life is more than that of 1More Aero by 1 hours . Every time you recharge your device, they get a little less playing time. The effect is not noticeable at first, but over a few years, your wireless earbuds will have shorter listening time.

Battery Life Of Charging Case

Sennheiser CX 500BT 16hours

1More Aero 21hours

This is given by the vendor, and 1More Aero's case is said to have a charge of 21 hours. A charging case with a longer battery life enables you to recharge your earbuds on the go multiple times before recharging the case itself.

Sennheiser CX 500BT's charging case has a battery life of 16 hours, less than that of 1More Aero by 5 hours

Has A Battery Level Indicator

Sennheiser CX 500BT ✓

1More Aero ✓

The 1More Aero have a battery level indicator, an indicator alerts you when the earbuds has a low battery. Its lights indicate the charging state of your earbuds and charging case.

Sennheiser CX 500BT too have a battery level indicator, charging indicators allow you determine the charging state of your earbuds, whether fully charged, or the battery is running low.

Sennheiser CX 500BT
See price on Amazon

Has Usb Type-C

Sennheiser CX 500BT ✓

1More Aero ✓

1More Aero have USB TYPE-C, a standard connector for transmitting both data and power in a single cable.

Sennheiser CX 500BT too support USB TYPE-C. This USB-C plug comes along with most current electronics.

Bluetooth Version

Sennheiser CX 500BT v5.2

1More Aero v5.2

The 1More Aero have Bluetooth version of 5.2, Bluetooth is a wireless technology standard that allows data transfers between devices placed in range, using short-wavelength, ultra-high frequency radio waves.

Sennheiser CX 500BT has a Bluetooth version of 5.2, equal to that of the 1More Aero . Newer versions provide faster data transfers.

Maximum Bluetooth Range

Sennheiser CX 500BT 10meters

1More Aero 10meters

1More Aero have a 10meters distance to connect via Bluetooth.

Sennheiser CX 500BT have a maximum range of 10meters, equal to that of the 1More Aero

Has Aac

Sennheiser CX 500BT ✓

1More Aero ✓

1More Aero support AAC, a codec that is used for Bluetooth audio. It supports 24-bit audio at 250kbps. Since it uses psychoacoustic modeling, it can provide better results than other codecs at a similar bit rate.

Since its the highest quality codec that any Bluetooth-supporting Apple product supports, the 1More Aero will work well with your MacBook. If you are planning on using these with Android , ensure that they also support aptX HD, LDAC, or LHDC as well.

The Sennheiser CX 500BT 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 Aptx Adaptive

Sennheiser CX 500BT ✓

1More Aero ✗

Sennheiser CX 500BT support APTX Adaptive, an audio codec for Bluetooth devices that are developed by Qualcomm. It has a variable bit rate (between 279kbps and 420kbps).

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Number Of Microphones

Sennheiser CX 500BT 4only

1More Aero 6only

1More Aero have 6 microphones.

While the Sennheiser CX 500BT microphones are 4, less than that of 1More Aero by 2 . More microphones result in better sound quality and help the device to filter out noise.

Has A Noise-Canceling Microphone

Sennheiser CX 500BT ✓

1More Aero ✓

The 1More Aero have a noise-canceling microphone, these microphones are designed to filter out background sounds from the desired sound.

The Sennheiser CX 500BT too use a noise-canceling microphone. Especially useful in noisy areas.

Highest Mic Frequency

Sennheiser CX 500BT 10000Hz

1More Aero ✗

The Sennheiser CX 500BT's highest mic frequency is 10000Hz, high frequencies are better for picking up treble. The highest mic frequency of a microphone is defined as its upper limiting frequency.

Lowest Mic Frequency

Sennheiser CX 500BT 100Hz

1More Aero ✗

The Sennheiser CX 500BT's lowest mic frequency is 100Hz, low frequencies are best for recording bass. The lowest mic frequency of a microphone is defined as its lower limiting frequency.

Sennheiser CX 500BT
See price on Amazon

Has Ambient Sound Mode

Sennheiser CX 500BT ✓

1More Aero ✓

The 1More Aero support ambient sound mode, which uses microphones to pass through ambient sound so that they can still be heard even while wearing them

The Sennheiser CX 500BT 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 run but would still want to be able to hear traffic.

Has In/On-Ear Detection

Sennheiser CX 500BT ✓

1More Aero ✗

The Sennheiser CX 500BT have in/on-ear detection, the sensors in the device can detect when removed from your ears .

Has Find Earbuds Feature

Sennheiser CX 500BT ✓

1More Aero ✓

If lost in a room, or can't easily find them in your bag, 1More Aero have a find earbuds feature.

Sennheiser CX 500BT also have the find earbuds feature. Use the device app on your phone to play a sound from your device to help you locate them.

Supports Fast Charging

Sennheiser CX 500BT ✓

1More Aero ✓

1More Aero support fast charging. Usually, technologies like MediaTek’s Pump Express, are used to reduce the time it takes to fully charge a device.

The Sennheiser CX 500BT support fast charging. It's very similar to regular charging, just that the battery is filling up much faster. For example, with Quick Charge 3.0, the battery is charged to 50% in just 30 minutes.

Has A Mute Function

Sennheiser CX 500BT ✓

1More Aero ✓

The 1More Aero have a mute function, they support the feature to mute/unmute a conversation directly from the earbuds.

The Sennheiser CX 500BT also support this function. The mute function means that you are in position turn off the device's microphone, but still hear the other party's voice.

Control Panel Placed On A Device

Sennheiser CX 500BT ✓

1More Aero ✗

With the Sennheiser CX 500BT, so you can access the volume control, pause, play, mute, etc whichever features are supported on the device.

Warranty Period

Sennheiser CX 500BT 2Years

1More Aero ✗

Sennheiser CX 500BT have a warranty period of 2 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

Sennheiser CX 500BT ✓

1More Aero ✓

The 1More Aero have voice prompts. Automatically receive information via audio messages, say if there is a problem with the connection.

The Sennheiser CX 500BT also have voice prompts meaning the earbuds will notify you when the battery is low, and it's time to recharge them.

Travel Bag Is Included

Sennheiser CX 500BT ✓

1More Aero ✓

1More Aero come with a special pouch. Carrying earphones without a case, or placing them inside your bag without a casing can easily put them at risk of getting damaged.

Sennheiser CX 500BT too have a case included, which offers safe transportation.

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Category	Features	Sennheiser CX 500BT	1More Aero
DESIGN	ingress protection (ip) rating	IPX4	IPX5
	weight	12g	✗
	has no wires or cables	✓	✓
	sweat resistance	✓	✓
	has stereo speakers	✓	✓
SOUND QUALITY	has active noise cancellation (noise control)	✓	✓
	has passive noise reduction	✓	✓
	driver unit size	✗	10mm
	lowest frequency	5Hz	20Hz
	highest frequency	21000Hz	20000Hz
	sound pressure level	94dB/mW	✗
POWER	battery life	8hours	7hours
	battery life of charging case	16hours	21hours
	has a battery level indicator	✓	✓
CONNECTIVITY	has usb type-c	✓	✓
	bluetooth version	v5.2	v5.2
	maximum bluetooth range	10meters	10meters
	has aac	✓	✓
	has aptx adaptive	✓	✗
MICROPHONE	number of microphones	4only	6only
	has a noise-canceling microphone	✓	✓
	highest mic frequency	10000Hz	✗
	lowest mic frequency	100Hz	✗
EXTRAS	has ambient sound mode	✓	✓
	has in/on-ear detection	✓	✗
	has find earbuds feature	✓	✓
	supports fast charging	✓	✓
	has a mute function	✓	✓
	control panel placed on a device	✓	✗
	warranty period	2Years	✗
	has voice prompts	✓	✓
	travel bag is included	✓	✓
		See price on Amazon	See price on Amazon

A Review By Comparison of the 1More Aero Vs. Sennheiser Cx 500Bt

Reasons why you might like the Sennheiser CX 500BT

Reasons why you might like the 1More Aero

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

Has Stereo Speakers

Sound Quality

Has Active Noise Cancellation (Noise Control)

Has Passive Noise Reduction

Driver Unit Size

Lowest Frequency

Highest Frequency

Sound Pressure Level

Power

Battery Life

Battery Life Of Charging Case

Has A Battery Level Indicator

Connectivity

Has Usb Type-C

Bluetooth Version

Maximum Bluetooth Range

Has Aac

Has Aptx Adaptive

Microphone

Number Of Microphones

Has A Noise-Canceling Microphone

Highest Mic Frequency

Lowest Mic Frequency

Extras

Has Ambient Sound Mode

Has In/On-Ear Detection

Has Find Earbuds Feature

Supports Fast Charging

Has A Mute Function

Control Panel Placed On A Device

Warranty Period

Has Voice Prompts

Travel Bag Is Included

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