The Urban Kanteen Fashion is designed with a clean, crisp, powerful sound combined with a full-color face to show off your client's message. The leather strap and stand attachments allow this wireless speaker to be the perfect wall or table accent where your client's message will always have a display. Specifications: Working Voltage: 3.2V-4.2V, Power Input: DC 5V/1A, Frequency Range: 100Hz-18KHz, Output Power: 12W, Product Size: 205 x 205 x 57mm, Battery Capacity: 4000 mAh