Warranty: 1 Year Features: Bluetooth 5.0 Audio input support Handsfree calling Dual diaphragm design Playtime up to 10 hours 10W speaker output Technical Specifications: Speaker type: Active, Stereo Amplifier: Digital (Class D) Bluetooth version: 5.0 Range: 10 m Weight: 0.58 kg Drivers: 2 (with passive radiator) Driver power: 5W each Driver size: 45 mm Impedance: 4? Frequency response: 70Hz – 18.5kHz S/N ratio: 80 dB Battery: 2200 mAh, 3.7V Input: DC 5V, 1A (Max 5W)