Feature:1. Electric guitar headphone amplifier with true analog circuit, faithfully simulates the response of amps.2. 3.5mm(1/8 inch) PHONE jack allows you to play guitar with headphone at high volume but not bothering neighbors.3. 3.5mm(1/8 inch) AUX input jack lets you enjoy the music you like in your audio player while playing guitar.4. Features heavy rock distortion effect, with distortion degree(DRIVE) and tone control knobs.5. Built-in rechargeable battery, supports up to 3-6 hours continuous working time, and with LEDs showing charging status and remaining power.Specification:Features:Electric guitar headphone amplifier with true analog circuit, faithfully simulates the response of amps.3.5mm(1/8 inch) PHONE jack allows you to play guitar with headphone at high volume but not bothering neighbors.3.5mm(1/8 inch) AUX input jack lets you enjoy the music you like in your audio player while playing guitar.Features heavy rock distortion effect, with distortion degree(DRIVE) and tone control knobs.Built-in rechargeable battery, supports up to 3-6 hours continuous working time, and with LEDs showing charging status and remaining power.Specifications:Color:Grey/ Black(optional)Battery: 3.7V 500mA Rechargeable BatteryItem Size: 8.5 * 8 * 2cm/ 3.3 * 3.1 * 0.8inItem Weight: 48g/ 1.7ozPackage Size: 18 * 13 * 3cm/ 7.1 * 5.1 * 1.2inPackage Weight: 115g/ 4.1ozPackage List:1 * Guitar Amplifier1 * USB Charging Cable1 * Splitter Headphone Audio Adapter1 * Audio CablePackage List:1 * Guitar Amplifier1 * USB Charging Cable1 * Splitter Headphone Audio Adapter1 * Audio Cable