(HD1)M25 Earbuds TWS Waterproof Earphones LED Screen Surround Sound Headphone Bluetooth Built In Backup Charger

Battery: 600mAh Charging Dock 50mAh Headphones【Q&A】 Unable to connect: 1.after a long time of transportation and placement, resulting in insufficient power connection failure, please charge a little longer before the first use 2.There may be other signal interference nearby, please press and hold the function button when the power is sufficient, the light flashes, please carry out Bluetooth pairing during the light flashing, if there is still a similar situation, please delete the headset and the mobile phone Bluetooth matching, and re-match according to the above methods No sound: 1.the touch key on the earphone can adjust the volume, the buyer can adjust the volume according to the manual operation or avoid accidentally touching the volume down 2.there are some mobile phone devices that need to set the device (Bluetooth/speaker) for playing the song selection, please follow the phone prompts to set