1. Power on and interconnect the dual-use headset, take it out and press the power button to perform Bluetooth pairing. Single and dual ears can be connected to one mobile phone, one for each person, listening to the same song, and can be used separately, which is equivalent to two Standalone headset2. Turn on and interconnect the dual-use headset and press the power button to perform Bluetooth pairing. Single and dual ears can be connected to a mobile phone, one for each person, listening to the same song, and can be used separately, which is equivalent to two Standalone headset3. The PX4 level of sweat and water resistance effectively prevents sweat during exercise from affecting the operation of the earphones, without fear of daily rain and sweat, so that every drop of sweat will beat in the music 4. The noise reduction design is only for immersing in listening to music, such as being immersive, free and free, enjoying your own music world5. Soft ear cushions are comfortable to wear. The ear cushions are comfortable and soft to wear, have a good sealing effect, and can also improve the bass enhancement effect, bringing you unexpected situationsBluetooth version: V5.0Support protocol: HSP, HFP, A2DP, AVRCPStandby time: 180hTalk time: 10hMusic playback time: 10hCharging time: 1hCharging voltage: DC5VBluetooth working frequency: 2.402G-2.480GAmbient temperature: -20/+60 CelsiusTransmission distance: 15mEarbud battery capacity: 80mAh/3.7Vcolour:Black silvermaterial:Aluminum alloy + ABSPackage Contents:1 * Bluetooth headsetOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.