Operation confirmed. Features: In-ear monitor amplifier for artists to adjust sound balance. Powerful headphone output that delivers clear monitoring even in loud environments such as drums. Two XLR inputs can be configured as dual mono or stereo. Level, mix balance, and mono/stereo switching are possible. Can operate for up to 12 hours with a 9V battery (sold separately), or with a PSU-SB power adapter (sold separately). Built-in limiter function to protect headphones and ears. Includes a belt pack for attaching to belts, etc., and can also be attached to a standard microphone stand. High durability with a robust metal chassis. Specifications: ◆ In-ear monitor amplifier Number of channels: 2 Input terminals: XLR x 2 (L/R) Headphone output: Stereo mini jack x 1 Power supply: 9V dry cell battery x 1 *AC adapter (sold separately) can be used Dimensions (W x H x D): 125 x 45 x 85mm Battery life: Approximately 12 hours *Can be attached to a microphone stand