Duo LED light and wireless speaker made of Aluminum alloy. Iron carabiner at top for easy on the go carry-along. Power/Technology: Rechargeable Lithium Polymer battery, 3.7V, Capacity: 180 mAh, Input: 5V; Work Current: 40-60 mA; Sensitivity: 100+-3dB at 2kHz; Frequency Response: 20Hz – 20 KHz; Transmission range: 10M (approx. 30 feet); WirelessV 4.2. Playback time: approx. 2.5 hours, depending on usage. Must be charged prior to first use. Charge time varies by device. Minimum 2 hours. Instructions and charging cable included. FCC Approved. This item cannot ship internationally except to Canada via ground.This item can only ship to Alaska, Hawaii, Puerto Rico and any other small U.S. island territory via Air.