Bluetooth version: V5.0 Bluetooth distance: 10 m Charging time: about 1-2 hours Standby time: about 80 hours Music time: about 3 hours Talk time: about 4 hours Headphone battery: Lithium polymer battery 45 mAh Battery box battery: Lithium polymer battery 280 mAh Audio transmission format: HFP / A2DP / HSP / AVRCP Waterproof rating: IPX5 How to pair headphones 1. Take out the charging box or press and hold the left and right car multifunction buttons for 3 seconds until the red and blue indicator lights flash alternately, and then enter the ear search pairing state. Before the ear pair is automatically matched, when the primary ear (right sar) is matched, the red and blue indicator lights flash alternately, the secondary ear flashes slowly, and the paired ear is successfully played. 2. Activate the Bluetooth function of the mobile phone or other device. If it is an Android phone or device, please click Search Bluetooth device. After searching for the model of the Bluetooth headset, click to open the link. After the pairing is successful, it will prompt that the main (right) headset is successfully connected, and the left and right headsets will turn blue and gradually become fleshy, and enter the connection standby state. After the pairing is successful, the most important ear is the correct sound channel. The secondary ear is the left channel. 3. Two sarphones can also be combined with mobile phones. Tns oparaliorn mglhod can be operated according to the operation method of step 2 above. Packing list: 1 x Mini A6S TWS Bluetooth headset (left ear and right ear) 1x280 mAh charging case 1 x USB charging cable 1 x manual 4 x ear caps