Superlux HA1D Portable Personal Monitor Headphone Amplifier, 1-Channel, Battery-Powered

Equipped with a high-quality built-in headphone amplifier, it provides powerful monitoring even in loud environments such as stage performances and studio recordings. The unit features a beltpack design for a compact, sleek, and simple design. Its sturdy steel body is also made of durable steel. Powered by two AAA batteries (batteries sold separately), it provides up to 12 hours of operation. The volume control knob also doubles as a power switch for simple operation. Equipped with a stereo/mono mode switch to match the input signal. Input terminals (line level): XLR, phone combo jack; Output terminals (headphone output): 3.5mm diameter stereo mini; Maximum output: 2 x 100mW (@16Ω); Power supply: Two AAA batteries (alkaline batteries recommended); Operating time: Up to approximately 12 hours; Dimensions/weight: H33 x W38 x D132mm / Approx. 140g