Great listening experience
The CX 350BT wireless earphones are the ideal companion for great sounding audio on the go. With support for the latest wireless technologies including Bluetooth 5.0, AAC and AptX™ Low Latency, the CX 350BT delivers a great listening experience.
Sennheiser sound quality
It’s time to break free.
Ideal companion
With Sennheiser sound quality, 10-hour battery life and advanced features like voice assistant support, the stylish CX 350BT wireless earphones are the ideal companion for enjoying music and videos on the go without compromise.
Great sound experience
A great sound experience is assured by the latest wireless technology, including AAC and AptX™ Low Latency codecs for audio that stays perfectly in sync with onscreen action on compatible devices.
Fast, reliable connectivity
Multi-pairing and Bluetooth 5.0 compatibility ensure fast, reliable connectivity with two devices simultaneously.
Personal listening experience
The CX 350BT ensures a truly personal listening experience thanks to the Sennheiser Smart Control App which allows for sound customization via its equalizer.
Personalization features
Along with the personalization features, the app provides battery status, a Quick Guide, firmware updates and a podcast mode for optimized speech.
Specifications
Sound pressure level (SPL)
110 dB (1 kHz/0 dB FS)
Wearing style
Neckband
Transducer principle
dynamic
Transducer size
9.7 mm
Bluetooth version
Bluetooth 5.0
Weight
13 g
Bluetooth Audio Codec
aptX®, aptX® LL, AAC, SBC, LHDC
Charging time
approx 2.5 hrs
Bluetooth profiles
AVRCP, A2DP, HFP, HSP
Battery type
built-in rechargeable lithium-polymer battery: 3.7 V, 100 mAh; USB charging: 5V
Weight
14 g
Frequency response (speaker)
20 Hz - 20,000 Hz
Impedance
28 Ω
Sound pressure level (SPL)
108 dB (1 kHz/0 dBFS)
Total harmonic distortion (THD)
< 0.5 % (1 kHz, 100 dB SPL)
Microphone pick-up pattern
omni-directional
Microphone sensitivity
- 44dBV/Pa
Microphone principle
MEMS
Article number (SKU)
508382 Black, 508383 White
What's included
- CX 350BT earphones
- Ear adapter set (XS/S/M/L)
- USB-C charging cable
- Quick guide
- Safety guide
Downloads
Transport information for Lithium-Ion batteries
Accessories & spare parts
We are committed to the longevity of our products.
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