1、Magnetic suction induction cabin closure, no need to press hard, easy to open the door, greatly enhance the use of experience, solve the traditional buckle type storage compartment opening trouble. 2、LED digital electric quantity display, newly upgraded charging cabin electric quantity display, charging cabin electric quantity at a glance. 3、Touch control operation, no need to press, no buttons that may bring uncomfortable pressure to your ears. 4、Not only can it charge your headphones, but it can also act as an emergency charger for your phone. 5、Automatic boot pairing. Take out the headset, automatically boot, automatic matching. 6、For Bluetooth 1, more stable signal, lower power consumption. 1 x Manual2 x Ear cap1 x Charging line1 x Charge Box2 x Earphone Item Type: M16 Wireless EarbudsMaterial: ABSBluetooth Version: V 5.1Support Agreement: HFP 1.7 / HSP 1.2 / A2DP1 / ACRCP 1.6 / SPP 1.2 / PBAP 1.0Frequency Range: 2.402GHz- 2.480GHzWorking Distance: 10m / 32.8ftBattery: 50mAh lithium Battery for Left and Right Headphones, 1200mAh lithium Battery for Battery Compartment.Operating Instructions: 1. Take out the headset from the charging bin and the headset will start automatically. At this time, the headset indicator light flashes alternately red and blue and is in the pairing state. 2. Turn on the bluetooth of the device you need to pair, search for the bluetooth name TWS V 5.1 and connect.