Color:Black LEDParameters Color: black Origin: Shenzhen， China Shell material: ABS Weight: 250G Dimensions: 146*37*56 MM Bluetooth program: 3.0+EDR Output power: 3W Receive distance: 10 m Playing time: 3 hours Frequency response: 150-18000HZ S/n ratio: \u2265 80db Distortion: \u2264 1% Charging time: 3-4 hours Packaging Exquisite high-end color gift box Gift box size: 155*42*60 MM Bluetooth speaker X1 USB charging connector X1 Notes: 1. do not immerse this product in any liquid to avoid a short circuit 2. do not use this product near any sources of ignition or heat sources