Sennheiser CX 120BT wireless headphones, black Review

Compact and comfortable, the Sennheiser CX 120BT wireless headphones deliver great sound and wireless freedom anywhere. Enjoy clear, detailed and balanced sound with support for SBC, aptX and aptX Low Latency audio codecs, and secure Bluetooth 4.1 connectivity. With a user-friendly neckband design, 3-button remote with microphone and 6 hours of battery life, easy call and playback control is a real pleasure. Features: High-quality audio with support for aptX and SBC and aptX Low Latency codecs 6 hours of battery life, 1.5 hours of charging via micro USB Control calls and music with an intuitive 3-button control unit with microphone Bluetooth 4.1 technology for reliable connection Comfortable optimal fit and noise isolation thanks to three sizes of interchangeable ear adapters Ergonomic neck cable for comfortable wearingSpecifications: Mic frequency response: 100 Hz - 8,000 Hz Microphone type: MEMS Supported profiles: HFP, AVRCP, A2DP Frequency response: 17 Hz to 21,000 Hz dBFS) Total harmonic distortion (THD): 0.5 (1 kHz, 100 dB SPL) Type of ear pads: in-ear Conversion principle, acoustic type: dynamic Weight: approx. ) Working time: about 6 hours (A2DP), 8 .5 hours (HFP) Modulation: GFSK, 960;/4 DQPSK Codec: SBC, aptX, aptX Low Latency Transmission frequency: 2.402 MHz - 2.480 MHz Temperature range: Operating temperature: 0C to 40C; storage: -25C to 70C Charging time: about 1.5h Battery specifications: built-in lithium polymer battery: 3.7V 9107;, 100mAh; USB charging: 5V 9107;, 500mA max Bluetooth: 4.1, class 1 Wearing style: collar Package contents: CX 120BT wireless headphones Ear adapters (S / M / L) Micro USB charging cable