Features: Supports 5 classic effects: reverb, chorus, flanger, overdrive and wow wah. With 3.5mm audio output, can be directly connect to speakers or headphones, and the output volume can be adjusted by volume switch. Supports BT connection, background music can be input wirelessly via your smartphone or other audio device with BT. 6.35mm rotatable plug available for guitars with input jack in different positions, flexible to use. Built-in rechargeable 800mA lithium battery, allows you to use it anytime and anywhere. Specifications: Color: Grey/ Red(optional) Material: ABS Fits: for electric guitar, acoustic guitar with EQ Effects: Reverb/Chorus/Flanger/Overdrive/Wow Wah Power Supply: Built-in 800mA lithium battery Charge: Micro USB port Frequency Response: 50Hz-18kHz Input Impedance: 22k ohm Output Impedance: 32 ohm BT: BT2.0 Audio Cable: 3.5mm to 6.35mm plug, 3 meters long Item Size: 12.5 * 4.3 * 2cm / 4.9 * 1.7 * 0.8in Item Weight: 40g / 1.4oz Package Size: 11.5 * 8 * 7cm / 4.5 * 3.1 * 2.8in Package Weight: 225g / 7.9oz Note: The guitar and amplifier showed in the picture are not included. Package List: 1 * Effector 1 * USB Charging Cable 1 * Audio Cable 1 * Carry Bag 1 * Users' Manual(English & German & French & Spanish & Italian & Japanese)