Nowsonic EarIn

Features:
Connection of two separate input signals via valanced XLR connectors
Mixing or balance of the two input signals as required
Socket for connecting an In-ear or circumaural headphone with 1/8″ TRS plug
Internal amplifier with high output power
Sufficient headroom and internal limiter for distortion-free audio playback
Clip for belt mounting
Power supply via internal 9V battery or DC adapter
Compact size and light weight

Specifications:
Type: Stereophonic amplifier for in-ear phones
Inputs: 2 x XLR-socket, balanced
Output: 1 x 1/8″ TRS stereo mini jack
Frequency response: 30Hz - 20Khz, +/-2dB
Min. headphone impedance: 16 ohms per side
Input impedance: 15Kohm
Nominal input level: 0dBV
Max. input level: +4dBV
Limiter threshold: +5dBV
Max. output power: 50mW per channel @ 20Ω load
Max. power consumption: 40mA
Power supply: 9 V, via battery or supplied DC adapter
Weight: 376g (w/o battery)
Dimensions: 170 x 93 x 47 mm (H x W x D)