K20 Wireless Earbuds Touch Control Bluetooth Earphones Stereo HD Talking With Mic Wireless Headphones Model: K20 Wearing method: in-ear wearing Standby time: 15h Bluetooth version: 5.3 Use time: 4h Charging time: 1-2h Charging compartment capacity: 200mAh Headphone capacity: 45mAh Transmission distance: 10m Intelligent noise reduction for static braking You can enjoy quiet even in a noisy environment, or listen to music, read a book, or take a nap without being disturbed by the outside world. Quiet ears, more pleasant body and mind HIFI Stereo Effect Heavy Bass Shocking The small headphone cavity has a built-in 10mm large-size dynamic unit, and the bass performance is even more amazing. With the high-sensitivity composite diaphragm, it can display rich music details and achieve a mellow sound experience. 5.3 Bluetooth chip to quickly control the battle situation Equipped with a new generation of low-latency 5.3 chip, 30ms delay in game mode to experience extremely fast games, helping you surpass the king Master-slave switching, single and double ear switching at will Easy to switch between single and binaural modes, pick up any one and listen to it, the left and right ears are the host, after the first connection, open the cover again to flash in a second Humanized design AI smart power display LED digital power display, the remaining power of the charging compartment is clear at a glance, avoiding the embarrassment of sudden power failure