1、Pedal type, portable 2‑in‑1 guitar amplifier and for bluetooth speaker, dual‑channel design (CLEAN & OVERDRIVE), each channel has a GAIN control knob. 2、This guitar amp has 2 modes of over‑speed channel, CLASSIC over‑speed mode and HI GAIN mode; 2 foot switches are used for channel and mode conversion, and the operation is simple and convenient. 3、The guitar speaker has built-in guitar delay effects, and MIX, TIME, FEEDBACK control knobs, supports for Bluetooth transmission, and can play music from smart devices through for Bluetooth 4.0. 4、Using the 6.35mm headphone jack, you can practice guitar or enjoy music, equipped with a rechargeable lithium battery, and equipped with a power adapter, convenient for long-term use. 5、This guitar amplifier switches the channel by pedaling, and has a full‑featured delay effect device, and it can also be used as a normal amp. Item Type: Pedal Guitar Amplifier Application: Acoustic guitar/electric guitar/electric bass Amplifier Power: 2 x 4W 2 x Speaker: Approx. 40mm / 1.6in Battery Life: 3 hours Input And Output: Guitar input headphone output Headphone Drive Capability: 75 ohm Power Supply: Built-in 7.4V 2200mAh lithium battery or power adapter DEL AY Effect Control Knob: TIME/MIX/FEEDBACK Guitar Effect Part Control Knob: CLEAN GAIN/DRIVE GAIN/TONEMASTER Control Pedal: CHANNEL switching pedal/DRIVE MODE selection pedal Guitar Effect Channel: Built-in Clean and Drive channels, there are Classic mode and Hi Gain mode under Drive channel 1 x Speaker 1 x Adapter 1 x Power Cable 1 x User Manual