This 3 in 1 power bank is a portable speaker， a battery charger and a stand for your electronic devices such as your mobile phone， tablet or MP3 player. With 4000mAh capacity， it has plenty of juice just when you need it. It allows you to play music through the speaker， while docking your device at a convenient and easy-to-view angle so you can still access the internet， emails and text messages without having to hold your phone or removing it from the speaker. It cleverly detects any device’s audio signal and turns itself on or off accordingly， saving battery power. The Power Jam also has a built-in USB port， which allows you to connect any USB cable to your device and it’ll keep your device charged up while you’re listening to your tunes. The Power Jam features a 4000mAh lithium battery， which has enough power to give any smartphone one full charge from empty. The Power Jam itself can be re-charged with the included lead. Try this innovative product today! 它是个移动电源，它还是一个手机支架，也是一个迷你音箱。 将手机支架+移动电源+音箱合于一体，简单而不琐碎，功能齐全而不复杂。 采用ABS环保塑料*环保彩色橡胶手感油。舒服的手感，鲜亮饱满的大胆配色，赋予了产品浓厚的时尚，灵动气息 Features: Innovative product design – mobile phone power supply， speaker and stand all in one! Compact and portable & convenient to carry! Holds your devices horizontally. Access the internet， emails and texts without having to move your phone from the speaker. 4000 mah battery to give your smartphone a 1.5 full charges! Amazing speaker inbuilt too! Absolutely no memory effect so that you can charge battery at any time. Integrated microchip prevents overcharging & lengthens battery life! Fast charging function too! LED light indicates power capacity level. Rechargeable Time: Over 800 cycles. A 3.5mm Audio Port allows you to play music from devices directly. Includes USB Charging Cable AND a 3.5mm Audio Cable too! 100% Compatible with original manufacturer equipment’s. Perfect gift for your family and friends. Use anytime anywhere!