Modelling Headphone Amplifier for Electric Guitar Compact, portable, intelligent modelling guitar headphone amplifier for practising and recording 52 Pre-installed guitar amp models 14 Modulation effects 5 Delay effects 5 Reverb effects 40 Different drum rhythm backing tracks Presets can be edited (in real time), uploaded, shared and downloaded via the FLAMMA mobile app and the FLAMMA cloud platform Bluetooth for audio playback USB-C port for charging/OTG & audio for recording and audio playback Integrated 720 mAh lithium battery Battery life up to 4 hours Charging time: 2.5 hours Charging via 5 V 1 A (mains adapter not included) 6.35 mm jack plug (can be tilted up to 270°) Stereo headphones output (3.5mm jack) Dimensions (W x D x H): 40 x 82 x 30 mm Weight: 59 g Includes USB-C charging cable