Logitech Headset...

For over 70 years, JBL has engineered the precise, impressive sound found in big venues around the world. These headphones reproduce that same JBL sound, punching out bass that?s both deep and powerful.Micro USB charging built-in battery provides up to 8 hours of playing time, with recharge in just 2 hours or 15 minutes for one-hour (max) top-up.Ensures that the headphones remain comfortably secure and tangle-free around your neck when not in use.Enjoy wireless calls and manage your music hands freeAllows you to effortlessly switch from one bluetooth device to another.

BT 5.1 technology ensures higher data transfer speed, more stable and fast connection, and lower power consumptionTrue wireless dual-ear design, left and right earphone channels are separated. It can be used solely or in pairsAuto power on and fast pairing between left and right earbuds once opening the charging case lidTouch control design, no more pressure on your ears. Easy to control music and calls, and activate voice assistantBuilt-in Mic on both earbuds with noise reduction enables hands-free call and delivers clearer talking sound in stereo mode

Driver sensitivity range is about 1kHz/1mW (dB) with impedance 14 ohmsDynamic frequency response range is about 20Hz?20 kHzWith up to 25 hours 5 hours from the earbuds and 15 hours from the case of battery lifeBluetooth frequency range is up to 2.4-2.4835 GHzTransmitted modulations are GFSK, ?/4 DQPSK, 8DPSK and 55mAh 3.7V battery