Part of the D20 Multi-tool battery system. Versatile and durable wireless speaker connects to mobile devices using Bluetooth. Once the mobile device is paired with the speaker it will auto-link to stream music through the speaker. In addition, it is equipped with one auxiliary port for MP3 compatibility and one USB port for charging mobile devices. As part of our core range, this speaker is suitable for enthusiasts and tradespeople alike. Any application other than that it was intended for, is considered misuse. For maximum versatility it is powered by D20 batteries. Batteries and charger available separately. D20 interchangeable battery system allows you to combine one battery with any of the tools within the D20 series. The D20 interchangeable battery system allows you to combine one battery with any of the tools within the D20 series. Auxiliary input: 3.5mm, Output power: 2 x 3W , Battery: D20 20V 3.0Ah Battery , Charger: D20 20V 1.65A battery charger, Product dimensions: (W) 123 x (D) 145 x (H) 183mm