The Voombox outdoor is sturdy, water resistant and built to the outside. Has an advanced audio performance that provides a listening experience to all field. The rechargeable battery of 12 hours Offers music without interruptions from dusk till dawn. ? Voombox outdoor connects wirelessly to your smartphone, tablet or other Bluetooth device using the latest Bluetooth 4.0 technology. Voombox also has a built-in microphone for making and receiving calls in wireless mode from only or for a conference call. Some of the product features are the dual speaker in full expansion, the wireless play from up to 10 meters away, the built-in microphone for hands-free calls, the rechargeable battery 12 hours and the robust design made to last. Product Specifications Voombox outdoor are the dimensions of 2 inch x 2 inch driver, the output power is 7.5 W x 2, the size of the speakers are 165L x 52d x 70 H (mm), the signal to noise is of 75db, the battery capacity is 3200 mAh, the Battery Voltage is 3.7 V, the battery charging time is 3 – 4 hours, the wireless range is up to 10 meters, Bluetooth compatible Bluetooth 4.0, support A2DP stereo Bluetooth Profile is, the talk time is up to 12 hours and the sensitivity of the microphone is -40 dB. Voombox outdoors Includes (1) Voombox outdoor, (1) wrist strap, (1) auxiliary connection and (1) Micro-USB charging cable.