Specification: Item Type: Wireless Bluetooth Speaker_x000D_Material: ABS_x000D_Color: As Pictures Shown _x000D_Weight: Approx. 123g/4.3oz_x000D_Loudspeaker Size: 52mm/2.0in_x000D_Supported Protocol: Memory Card/USB/FM/AUX_x000D_Output Power: 3W_x000D_Battery Capacity: 300mAh_x000D_Frequency Response Range: 60Hz-- 15KHz_x000D_Operation Mode: Key_x000D_Signal Distance: 10m/32.8ft_x000D_Interface Type: Plug-in Card, USB_x000D_Supported Format: Memory Card Features: 1Mini wireless bluetooth speaker, lightweight and convenient to carry. 2Bottom bass diaphragm design, release HIFI level sound, bringing you extraordinary enjoyment. 3True wireless stereo for series connection, 2 speakers can play in series. High quality chip, so that the audio transmission is stable and fast, the linearconnection distance can reach up to 10m/32.8ft. 4It is compatible as long as it connect with bluetooth, audio transmission without delay. 5Also supports for connect the speakers through a USB port and a memory card port, through the button to operate. PackageList: 1 x WirelessBluetoothSpeaker 1 x Data Cable