Connectivity: Bluetooth/3.5mm AUX INRated output power: 2×8W (@1KHz THD=1%)Signal-to-noise ratio: 70dBTWS Connection: Yes(≤5m)Waterproof: IPX7Battery charging time: 4 hoursPlayback time: Approx. 13 hours (at 50% Volume)Bluetooth version: 5.0Frequency range: 80Hz to 20KHzRated impedance: 4 ΩTransmission distance: 15mBattery: Lithium-ion, 3.7V, 2600mAhRated input: 5V 1A