Our J7 Multifunctional Handy Waterproof Bluetooth Speaker with 4000mAh Power Bank &amp; Flashlight, boasting its 3-in-1 performance, is welcomed by most people. The Bluetooth speaker, with wear-resistant feature, could work in all kinds of conditions and environment, great for outdoor and travel use. Highly advanced Bluetooth performance makes this speaker convenient to operate. With it, you will enjoy melodies all the time. Built with flashlight design, it is good for guiding your directions in the darkness. In addition to its speaker function, it also acts as a power bank for charging your mobile device at any time. A practical tool for daily life!<!--Features --><p>FEATURES</p><ul><li> Compact size, lightweight for convenient carry and use</li><li> Built-in 2 speakers for loud sound</li><li> Flashlight function for indoor and outdoor use</li><li> 4000mAh power bank to charge your tablet / iPhone / Samsung / Huawei etc.</li><li> Bluetooth + EDR wireless transmission technology</li><li> Highly efficient and stable wireless data transmission and strong anti-interference</li></ul><!--Specifications --><p>Specifications</p><table width="100%" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td width="131"> Bluetooth Version</td><td width="365"> V3.0</td></tr><tr><td width="131"> Bluetooth Transmission Power</td><td width="365"> CLASS2-4dBm</td></tr><tr><td width="131"> Bluetooth Working Frequency</td><td width="365"> 2.4GHz</td></tr><tr><td width="131"> Charging Voltage</td><td width="365"> DC5V/500mA</td></tr><tr><td width="131"> Working Voltage</td><td width="365"> DC 3.7V</td></tr><tr><td width="131"> Battery Capacity</td><td width="365"> 4000mAh</td></tr><tr><td width="131"> Music Playing Time</td><td width="365"> 10 Hours</td></tr><tr><td width="131"> Talking Time</td><td width="365"> 30 Hours</td></tr><tr><td width="131"> THD</td><td width="365"> ● 0.1%</td></tr><tr><td width="131"> Signal to Noise Ratio</td><td width="365"> ◎90 db</td></tr><tr><td width="131"> Speaker Parameter </td><td width="365">4┯5W ㎪40MM Two Speakers </td></tr><tr><td width="131"> Bluetooth Range</td><td width="365"> 10-20m</td></tr><tr><td width="131"> Dimensions</td><td width="365"> (6.89 x 2.60 x 1.85)" / (17.5 x 6.6 x 4.7)cm (L x W x H)</td></tr><tr><td width="131"> Model</td><td width="365"> J7</td></tr><tr><td width="131"> Material</td><td width="365"> ABS</td></tr><tr><td width="131"> Color</td><td width="365"> Black</td></tr><tr><td width="131"> Weight</td><td width="365"> 10.58oz / 300g </td></tr></tbody> </table><!--Package Includes --><p>Package Includes</p><ul><li>1 x Bluetooth Speaker</li><li>1 x USB Cable</li><li>1 x User Manual</li><li>1 x 3.5mm Audio Cable</li></ul><!--Extra Info --><!--produts_compatibility -->