Écouteurs de sommeil avec bandeau de sport, bandeau Bluetooth stéréo sans fil, casque d'extérieur

Bluetooth button instructions 1. Power on/off key/Phone hanging up/Pause/Play 2. Volume up/next track button 3. Volume down button/Previous track 4. Mi Tou Kong 5. USB charging port Bluetooth parameter description Frequency range: 20-20KHZ Sensitivity: 95DM Impedance: 32 ohms Horn size: 32mm Transmission distance: Class II Operating range: 10M Charging time: 2H Playtime: 10H Battery: 200mAh lithium battery Accessories: Data cable+instruction manual Bluetooth version: V5.0 Bluetooth search name: BT-01 Bluetooth headband material: elastic Lycra and quick drying fabric (spandex) Flat Bluetooth eye mask material: crystal velvet 3D Bluetooth Eye Mask Material: Nylon and Memory Cotton Packing specifications (color box): Bluetooth headband: 65g with color box, box size: 8 * 9.2 * 5cm; 100 pieces/box; Box size: 40 * 19 * 50cm; Gross weight: 7KG. OEM: 300 pieces/500 colors/500 packaging Multiple colors available Internal network upgrade, with excellent elasticity and breathability with The following is a picture of a Bluetooth headband made of regular Lycra fabric