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Sennheiser CX 120BT Wireless Bluetooth in Ear Neckband Headphone with Mic (Black)

Ear PlacementIn Ear
Connector TypeWireless
Model NameCX 120BT

About this item

  • High-quality audio with aptX and SBC codec support and additional aptX Low Latency
  • Bluetooth 4.1 technology for seamless connectivity
  • 6 hours of battery life, with 1.5 hour to charge via micro USB
  • Call and music management via intuitive three-button remote
  • Designed for comfort with three interchangeable ear tip sizes included for optimal fit and sound isolation
  • Wearing style: Neckband

1,399.00 3,490.00


From the manufacturer


Technical Data

Frequency response (Mic)100 Hz – 8,000 Hz
Frequency response17 Hz to 21,000 Hz
Sound pressure level (SPL)112 dB (1 kHz/0 dBFS)
THD, total harmonic distortion< 0.5 % (1 kHz, 100 dB SPL)
Weightapprox. 14g
Pick-up patternomni-directional
Microphone sensitivity-42 dB V/Pa
Operating timeUp to 6 hours (A2DP) 8.5 hours (HFP)
Transmission frequency2,402 MHz – 2,480 MHz
Charging timeapprox. 1.5 hrs
Bluetooth4.1, class 1
CodecsSBC, aptX, aptX Low Latency
Supported ProfilesHFP, AVRCP, A2DP

Product information

Technical Details

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