BK9 HiFi 7.1 Surround Sound Cat Claw Luminous Cat Ear Bluetooth Gaming Headset with Mic(Black) Description: 1.BT5.0, Experiencespeedandpassion, High performance, low power consumption, high stability. 2.Long battery life, Double the battery and listen continuously, Long battery life, slowly and long night with you. 3.High performance unit,40mm large movingcoil,clear sound quality created by core technology. 4.Cute colorseries design,there is always al color that impresses you. 5.Spatialsound,7.1 surroundsound,An immersive audio experience for entertaining games,from intense games to classic movies,Chasing drama has always been full of joy. 6.Not take up space,Easy to fold without cumbersome,The movable pull strip can be adjusted,stretched and folded More convenient to travel. 7.Leatherbigearmuffs,Comfortable to wear without sound leakage,Telescopic adjustment, folding storage. Specifications: 1.Bluetooth profile: V5.0 2.Communication distance: 15m 3.Frequency response: 20HZ-20KHZ 4.Output power of horn: 10mW 5.Signal to noise ratio: about 80db 6.Distortion: about 5.0% 7.Sensitivity: 105+3dB 8.Charging time: about 2.5 hours 9.Horn impedance: 32ohm 10.Battery capacity: 400mAh 11.Packing size: 18.7*16*8.2 12.Single Weight: 262g Package Included: Headphone x 1 Charging Cable x 1 Instruction x 1