Invisible long standby wireless sports Bluetooth headset $ 20.40 Product Brand: i71 Product model: S3 Bluetooth version: Bluetooth 5.0 Bluetooth distance: 15 meters Waterproof rating: IPX 7 level Compatibility: Bluetooth is fully compatible Intelligence: automatic switch, automatic connection Power display: LED power display Sensitivity: 953dB Speaker diameter: 8mm (normally 6mm) Standby time: about 100 days Power bank function: can charge the phone Single use of both ears: about 4-5 hours Binaural with charging compartment: about 40-50 hours Function: Multi-function touch (play pause, answer hang up, up and down song, Volume increase and decrease, call voice, switch machine) Packing list: 1 charging box, 3 pairs of ear caps, 1 charging cable, 1 manual
