Tune 500BT Bluetooth...

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.

Lenovo half in-ear earphone features high-grade cable, remote control and dynamic drivers maintain great musicality and comfortFinely engineered dedicated dynamic drivers handle treble, mids and bass and produces Energetic, rhythmic, and Hi-Fi soundFurnished with top-class ear case and superior cables ensure priceless comfort and lasts longer than a usual earphoneExperience the crystal-clear sound output regulation, brought you by the built-in brand new remote control, thanks to the unrivalled mic for noise-free calling

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