Bluetooth Speaker, Portable Speaker, Cylindrical Shape Speaker

Bluetooth speaker, portable speaker, cylindrical shape speaker, Stereo SpeakerBluetooth: Allows you to play music from your media devices wirelessly. Equipped with Bluetooth pilot lamp; Convenient to indicate Bluetooth working status. Built-in rechargeable battery: Allows for longer play time. Built-in amplifier: Provides stronger clear quality sound. Operating distance: 10 meters. Specifications; Power: 2W. Sensitivity: 80dB± 2dB. Speaker: Φ 40mm/4Ω 3W. Signal-to-noise ratio: 80dB. Distortion: 0.3%. Battery: Built-in lithium battery 3.7V 500mA. Frequency range: 2.400-2.480GHz.