Parameters:  Bluetooth: 5.0;  Bluetooth distance: 10m;  300mA power, 100 hours long standby;  Call: 4 hours;  Listening to music: 2.5-3 hours;  Binaural cyclic charging: 4-5 times;  Charging in the charging bin: about 1 hour;  Size:Earphone:43*6.3mm;  Charging Case:55*45*22mm;  Functions: automatic pairing on power-on, smart touch, low power consumption;  Anti-fingerprint, anti-scratch, waterproof and sweat;     Usage:  1. The left and right ears are turned on at the same time, and the headphones on both sides are automatically paired;  2. Put the charging bin to charge and shut down automatically;  3. Answer the phone: touch the left/right channel once;  4. Hang up the phone: touch the left/right channel once;  5. Refuse to answer the phone: press the left/right channel for 2 seconds;  6. Stop playing songs: touch the left/right channel once;  7. Up and down: touch the left/right channel 3 times;  8. Adjust the volume: touch the left/right channel twice;  9. Call Siri: Long press the left/right channel for 3 seconds (Press 1 button to charge the earphone, then press 1 button to charge the earphone, and the earphone will open up when it is turned on manually and paired successfully);