M31

Bluetooth compatible version: 5.2 Transmission distance: 20 meters Listening time: 6-12 hours Standby time: 180-280 hours Charging time: 1-2 hours Charging box battery capacity: 2000mAh (included) Charging interface: micro usb Operation mode: smart touch Waterproof: IPX7 Applicable products: smart matching mobile phones, tablet computers (universal for apple/for android) Features: digital display, touch control, voice assistant Size Details: 7cm x 5cm x 3.3cm/2.76" x 1.97" x 1.3" (approx.)