Connection: Bluetooth Speaker channels: Stereo Microphone: BuiltIn Microphone Colour: Black Material: PVC / Silicone Bluetooth® version: v5.0 Capacity: 800 mAh Content: 1 pc Connection input: 1x Micro SD 1x Micro USB Power plug: USB IP rating: N/A Batteries included: BuiltIn LithiumIon Battery type: BuiltIn LithiumIon Charging time: 3 h Frequency range: 2402...2480 MHz Impedance: 4 Ohm Maximum Play Time: 10 hrs Maximum frequency: 2480 MHz Minimum frequency: 2402 MHz Operating distance: 10.0 m Peak power: 9 W Power rating: 5 V 1 A RMS: 3 W Sensitivity: 80 dB Transmission power: 0 dBm True Wireless Stereo TWS: No