I-9s TWS Wireless Bluetooth 5.0 Earphones Headphones

Very happy to serve you, dear customer!1. we will DO NOT put any invoices, QR codes, promotions in the shipment, So Dont worry, Just buy it, we will do anything well for you.2.We are guarantee each device be tested rigorous before shipped out, SO all products can guarantee 100% high quality before sent out.If you have any questions, please contact us. Thank you very much !!!FeaturesBluetooth version: version 5.0Transmission distance: outdoor straight line distance 10-15 metersBattery capacity: pure cobalt battery 60 mAhFunction: fast charging, HD callListening to music time: 2-3 hours up and down / pause playbackTalk time: 2-3 hoursStandby time: 130 hoursCharging time: 1hoursHow to pair headphones simultaneous:(1) 2 headphonesual press and start to see the red and blue flashing and then release the hand(2) 2 headphones will be automatically paired together, 1 of which will not flash. Is the pairing success(3) At this time, turn on the phone Bluetooth again to connect with the phone.Button function: long press, power on, long press, power off, click music pauseay, call answer/hang up, double click next songNote: Automatically shut down after three minutes without connecting the headset to the headset after booting.Charging tips:Headphone charging reminder light: headphone charging red lightCharging box charging tips:1. When the charging box is charging the earphone: the charging box LED light is always on, and the LED light is off after the earphone is full.2. When charging the charging box: the red LED of the charging box flashes, and the red LED is always on after being fully charged.i-9s-tws :1 x pair of headphones (left and right headphones)1 x charging box1 x USB charging cable1 x user manual