Features: 1.Ergonomic design, smooth curve, extremely attached to the ear gallery, so that the ear force is even, giving you better wearing experience! 2.The surface of the fuselage is sprayed with rubber oil, which is as delicate and smooth as skin and comfortable to wear every time. 3.Large power, the standard configuration of work maniac, elaborate structure design, equipped with a larger battery to meet the market demand of high power earphone in various occupation. 4.Fine structure and high configuration of Bluetooth earphone, better wireless experience. 5.10 meters of barrier-free transmission, 5.0 version of the signal connection is stable, and arbitrary shuttle within 10 meters. Specification: Bluetooth Version: 5.0 Battery Indicator: High performance lithium polymer lithium battery Stand-by Time: About 480 hours Charging Time: About 1.5 hours Music Time: About 20 hours Packing Size: Approx. 23.5 x 20 x 2.7cm/9.3 x 7.9 x 1.1inch Package List: 1 x Headset 3 x Pairs of Ear Caps 1 x User Manual 1 x USB Cable