1Pedal type, portable 2in1 guitar amplifier and for bluetooth speaker, dualchannel design (CLEAN & OVERDRIVE), each channel has a GAIN control knob. 2This guitar amp has 2 modes of overspeed channel, CLASSIC overspeed mode and HI GAIN mode; 2 foot switches are used for channel and mode conversion, and the operation is simple and convenient. 3The 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. 4Using 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. 5This guitar amplifier switches the channel by pedaling, and has a fullfeatured 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 Input : 100-240V AC 50 / 60Hz; Output: 9V DC 3A 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 xSpeaker 1 xAdapter 1 xPower Cable 1 xUser Manual