Features:
【4 Channel Stereo Headphone Amplifier】AIYIMA Audio H11 is a 4 high-power stereo amplifiers with output level control for each channel, compatible with 3.5MM headphones and 6.35MM headphones(You need a 3.5MM to 6.35MM adapter). If you're tracking more than one musician at once, or if everyone in a group wants to listen to a playback, you need a monitor distribution system. The compact, flexible H11 can power up to four pairs of headphones and up to four independent volumes.
【Various Media input methods】H11 support 3.5mm jack input,and also can support Bluetooth Optical Fiber and COAX,it can compatible with most multimedia devices in market.
【Upgraded Version】H11 is designed with a power switch and 3.5MM headphone output compare with other 4 CH headphone amp. When a recording session calls for everyone's heads and ears to be in the game, the H11 is the perfect solution and a real money-saver!
【Great Sound, Great Value】The H11 contains 4 independent stereo high-power amplifier sections that maintain the highest sonic quality even at maximum volume levels. These ultra-low-noise operational amplifiers are included for outstanding audio performance: the same op amps found in "full-size" audio equipment.
【Ultra-Compact Design】A Simple Solution: Ultra-compact headphone amplifier system for studio and stage applications. Grab this super-compact amp during your sessions to power practically any headphones: four of them at the same time. To be exact, let up to 4 different people in your studio listen to the main mix while recording, and each listener can determine their own preferred volume level using the dedicated output level controls.

Specifications:
Frequency response: 10-80KHz
Audio Input: 3.5 AUX, OPTI, COAX, Bluetooth 5.0
Audio output: Stereo 3.5MM headphone
Amp thrust: 32Ω 300mW
SNR: ≥90dB
Distortion: ≤0.05%
Power input: DC 12 1.5A
Size: 95*64*30MM

Package included:
1Pcs amp