Feature: 1. Experience Immersive Sound: Our portable guitar amp is designed as a headphone amp for electric guitars, providing a stereo headphone output that delivers an immersive music experience. Plug in your guitar and enjoy the quiet rock sessions without disturbing others. 2. Versatile BT Connectivit: This guitar headphone amp features BT connectivity, allowing users to easily connect to backing tracks for practice. It enables seamless integration with TRRS in-ear or over-ear headphones, making it incredibly convenient for musicians on the go. 3. Long-lasting Battery Life: Equipped with a high-capacity rechargeable battery, this headphone amp offers up to 5 hours of continuous playtime. Whether you're practicing at home or on the road, enjoy uninterrupted sessions with this portable guitar amp. 4. Rich and Adjustable Effects: The guitar amp includes 9 simulation tones and 3 surrounding effects, with easy-to-use control knobs. Adjust parameters for CHORUS, PHASER, and TREMOLO effects to find your perfect sound, elevating your playing experience. 5. Customizable Spatial Effects: Enhance your sound further with 3 space atmosphere effects. Control the REVERB, DELAY, and combined effects effortlessly to add depth to your music. The flexible design allows you to tailor your sound to your liking, ensuring every performance is unique. Specification: Sampling Rate: 44.1K 24bit Input: Standard 1/4 "mono interface/TS Output: 1/8 "stereo output Power Supply: USB 5V Working Current: About 100mA Battery Voltage: 3.7V Battery Capacity: 780mAh, built-in rechargeable lithium battery Battery Life: 5H Knob: AMP/GAIN/TONE/MOD/SPACE/MASTER AMP Knob: 9 tone selection knobs MOD Knob: 3 types of peripheral effect parameter adjustment knobs, including three stages of progress, with three MOD options to choose from SPACE Knob: 3 types of space atmosphere effect adjustment knobs, including three stages of progress, with three SPACE options to choose from Product Material: ABS Product Color: Black Product Size: 14.5 * 4.5 * 2 cm/5.7 * 1.8 * 0.8 inch Product Weight: 67 g/2.4 oz Package List: 1 * Headphone Amplifier Effect Device1 * Type-C Charging Cable1 * Instruction Manual