High power and "drummer sample" headphone output,Dual XLR or 6.35 input allows for dual channel mono or stereo operation,Switching stereo/mono operations with mixed functionality,Level and balance/hybrid control P2 is a personal in ear monitoring amplifier that can be used or in recording studios, providing flexible and convenient personal solutions for performers and recording artists. This device is designed specifically for drummers and other performers, with high-power headphone monitoring output to help that you can still hear your performance as the band's sound increases. Application Object:drummer,Keyboard,Guitarist,singer,Bassist,Every musician who doesn't need to move can use it Connectors Input: 2 xXLR connector, balanced Output: 3.5 mm TRS connector Input impedance: 20k+ Output impedance: 10 -+per channel Fequency response: 20 Hz- 80 kHz (+/-0.5 dB) + N : 0.01% Signal-to-noise ratio: 90 dB (A-weighted) CMRR: 50 dB Crosstalk: 40 dB System Data Normal input level: 2 dBu Max input level: 6 dBu Limit input level: 7 dBu Max output level: 9.5dBu Indicators LEDs Power indicator (green) battery control indicator (red) Voltage Green LED lit: voltage 7.3 VBoth green and red LED lit: voltage = 6.8-7.3 VRed LED lit: voltage Less than 6.8 V Different batches may have different appearances, but will not affect the use Plug Type: US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. Voltage: AC100-240V Colour:Black Material:Iron Package Contents: 1 x Headphone Amplifier(9V battery not included) 1 adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.