Budget Wireless Speaker.

ABS Plastic round wireless speaker. Power/Technology: Rechargeable Lithium-Ion battery: 3.7V, Capacity: 300 mAh; Input: DC 5V/180mA; Output/Power: 3W; Work current: 50mA; Impedance: 4Ω; Frequency response: 20Hz-20KHz; SNR: ≥70dB; Sensitivity: 85dB +/-2dB; Transmission range: 10M (30 feet); Wireless V4.1. Device must be charged prior to first use. Charge time varies by device. Minimum charge time: 2 hrs. Playback time: Approx. 90 min (depending on volume and usage). Charging cable and instructions included. FCC approved. WARNING: Item Contains LITHIUM BATTERIES and is restricted to ground shipping only.  CANNOT ship via air including to any U.S. address where part of the trip will be via air transport (i.e., Hawaii, Alaska, Puerto Rico).  CAN ship to Canada via Ground transport only.