Very compact headphone amplifier for in-ear monitoring XLR and jack input (combined, lockable) 3.5 mm mini-jack for headphones Built-in stereo/mono source switch Volume control with on/off button Operation up to 12 hours with 2 AAA batteries or rechargeable batteries (not included, suitable batteries: Article no. 417474) Dimensions (H x W x D): 33 x 38 x 132 mm Weight: 0.140 kg Includes belt clip
