Supports guitar volume, bass and treble control, as well as microphone volume and echo adjustment, giving you different sound effects. With a strap for carrying the guitar amplifier conveniently by your hand. Specifications: Power: 15W Speaker: 5 Interface: 6.35mm guitar jack, 6.35mm microphone jack Power Supply: Built-in 7.4V 2200mAH Lithium Battery Battery Life: about 5H(80% volume level) Recharge Socket: Micro USB 5V/2A BT Version: 4.2 Item Size: 21.5 16 16.5cm / 8.5 6.3 6.5in Item Weight: 2060g / 4.5lbs Package Size: 26.5 19 19cm / 10.4 7.5 7.5cm Package Weight: 2380g / 5.2lbs Note: Guitar showed in the picture is not included Package List: I3782 1 Amplifier 1 USB Charging Cable 1 Hand Strap 1 Users' Manual(English).