Stable and continuous Bluetooth 5.1 chip:Advanced Bluetooth 5.1 transmission technology, 20 meters transmission distance, stable connection, smooth without delay.^Synchronization of sound and image No delay in playing games:A new generation pf Bluetooth 5.1 chip, combined with acc+sbc dual audio decoding, achieve low delay, realize audio and image synchronization, better than ordinary Bluetooth headsets on the market, control battlefield status at any time.^AAC advanced audio technology Sound quality increased by 95%:Come with CD-level audio decoding to reduce the loss of sound quality, and the resolution is stronger to clearly restore details in the music, which can achieve lossless music playback.^Charge mobile phone Emergency power bank:Large-capacity charging case can not only charge earphones, but also provide emergency battery life for mobile phone, get rid of the embarrassment of mobile phone being out of power.^IPX5 waterproof and sweat proof Enjoy sports atwill:Satisfy your outdoor activity needs, so that you can enjoy wonderful music without fear of sweat and rain during exercise.