Wireless speaker featuring heathered fabric front panel. Power/Technology: Rechargeable Lithium-Ion battery; Capacity: 1800 mAh; Input: DC 5V/2.0A; Output: 4-5W; Working voltage:3.4-4.2V; Wireless V 4.2; Transmission range: 10m (approx. 30 ft). Includes microphone feature for answering and making phone calls. Includes a silicone carry handle .