Air Conduction Headset Wireless Bluetooth Headset Sports Running Power Digital Display Specification: Product Name:Bluetooth Headphone Gross weight: 0.19lbs/0.087kg Package size:11.8x7x3cm/4.65x2.76x1.18inch Net weight:0.19lbs/0.087g Bluetooth version: V5.1+DER Transmission distance: 10 meters Frequency response range:20Hz-20kHz Battery capacity:300mAh Speaker: 13mm Impedance:16 Music playback time: about 30 hours Standby time: about 100 hours Charging time:2hours Features: HIFI sound quality, open listening, immersive music experience does not hurt the ear, as far as possible to maintain the Ori-ginal sound quality Can be inserted into the memory card to use, Bluetooth / MP3 local playback S-witch at will, no cell phone that is to enjoy music, sports more easily Memory metal skeleton + skin-friendly silicone package, automatically adapt to the head shape arbitrary distortion without deformation safety and comfort Innovative Bluetooth 5.1 chip, signal enhancement to make signal transmission faster and more stable, S-TRONGER anti-interference ability, even in a crowded environment can be stable as before Support a variety of mobile devices, compatible with a variety of smart phones, laptops (need to have a Bluetooth adapter), tablets, etc. Air conduction is more comfortable to wear, no itchy and numb feeling in the ear . Ergonomic design according to the shape of the human head, sports to prevent falling, wear light and comfortable Built-in 300mAh battery, can be charged for two hours to continue to play 30 hours, solve your power anxiety, worry-free listening Package Include: 1x Bluetooth Headphone 1x USB Cable 1x Specification