Active stereo headphones from Synchros E series with 3D foldable shells, a world known JBL sound and Bluetooth connectivity with capability to share music. Thanks to the 50 mm drivers with PureBass performance they offer a distinctive sound with expansive frequency response and precise basses. Bluetooth technology allows wireless connection to your tablet or smartphone, thanks to integrated function ShareMe user can share music he just listens with compatible headphones equipped with this function. 3D rotating shells with soft leatherette ear pads in combination with an ergonomic headband ensure comfort for prolonged listening and transportation. In addition, ear pads provide increased levels of passive noise suppression and feature a built-in microphone with control, Pure echo cancellation technology and sensitivity -42dBV/Pa @ 1kHz. There is a rechargeable lithium-polymer battery (3.7 V, 730 mAh) which guarantees a lifespan up to 18 hours when playing music and 27 hours on a call. After discharging the battery cable is secured for passive listening. Bluetooth transmitter provides power <4 dBm, frequency range from 2.402 to 2.480 GHz and modulation GFSK BT /4 DQPSK 8-DPSK supporting BT 3.0, A2DPv1.2, AVRCP v1.4, v1.6 HFP, HSP v1.2. Headphones offer a frequency range of 20 Hz-20 kHz, maximum 117 db SPL, maximum input power of 30 mW. Included is a direct auxiliary cable (3.5 mm), USB charging cable, quick-start guide and safety warnings. Weight: 300 g, red colour design.