Brand new 1. super long standby: the headphone charging battery is 1000 Ma, the charging bin is flush once, and the headphones can be filled 8 times. 2. automatic start: the earphone can be automatically booed and automatically matched from the warehouse. 3. double talk: ears can be heard in both ears. 4. function key: headphone function keys can be adjusted to the next song. 5. Function key: refuse to answer the phone 6. function key: answer phone / hang up phone / pause / play. 7. It can be used with one ear or both ears. 8. Luo Da latest chip AB1526P true three-dimensional 9. Mini can be hidden in the cochlea. aterial: ABS Chip solution: force / Noda Bluetooth version: V5.0 Battery indicator: lithium polymer battery Communication distance: barrier free "10 meters" Duration: about 3.5 hours. Music duration: about 3 hours. Standby time: 72 hours Charging time: 1 hours. Earphone size: 1.2*2.5*1.6cm Headphone Weight: 3.8g Set weight: 92g Earphone battery: 55mah Battery charge: 1000 Ma Charging interface: magnetic contact charging Product color: Black Connection mode 1. Hold down the button for 3-4 seconds until the two headset lights are on. (voice - waiting for connection) 2. Open the Bluetooth function on your phone and search for "GS-TWS R", then click Connect. packing list: 1 pair Bluetooth Headset 1x USB Charging Cable 1x User Manual 1 pair ear caps