Plug the HA01 Passport headphone amp into your guitar and enjoy your favorite tones wherever you go. Overdrive/distortion sounds that can be used not only for travel guitars, but also for electric guitars are available. 10 classic preamps, modulation/delay/reverb effects, and 10 types of presets created with IR cabinet simulation can be set and saved to your liking in edit mode. It can be used continuously for 5 hours with a single charge. You can also use it as an audio interface to connect to other devices via Bluetooth and play back your favorite songs and audio from lesson videos at the same time through headphones for a session, or connect to a PC via USB 3.0 output and record with your DAW. works. It also has a guitar tuner function. Specifications Effects: Reverb, Delay, Chorus/Phaser Amps: 10 classic preamps, 10 IR cabinet simulations Recording: USB > 3.5mm phone jack USB port for output for voice recording, USB port for data connection to PC Bluetooth : Simultaneous playback of audio from other Bluetooth devices Material: ABS Input: 6.3mm mono standard phone plug Output: 3.5mm mono headphone jack Sampling rate: 48K / 24 bits Battery capacity: 780mAh Battery life: About 5-6 hours Power supply: DC5V, >300mA power adapter Size: 8.5cm x 8.1cm x 2.9cm Weight: 121g