RockBoard HA 2 | Portable In-Ear Monitoring Headphone Controller

Take command of your in-ear mix with the RockBoard® HA 2 Volume Controller. This lightweight belt-pack unit puts independent volume control directly in your hands, letting you adjust your monitor signal on the fly without interrupting the sound engineer. Perfect for performers who hold their ground on stage, it operates passively with zero battery requirements—just clip it on and go. Professional-grade simplicity that keeps you focused on your performance.

• cable-based in-ear monitor volume controller for vocalists, keyboarders, drummers, guitarists, bassists and other musicians
• ultra-compact, lightweight design; aluminum housing, metal belt clip
• stereo input and stereo output possible
• MONO/STEREO switch to be able to send a mono input signal to both ears
• XLR / 6.35 mm (1/4") - TRS locking combo input jack features a locking mechanism that prevents accidental disconnection of the XLR cable
• 3.5 mm (1/8“) stereo output jack for connecting your favorite in-ear-monitor, earphones or headphones
• passive volume control - no batteries required
• convenient belt pack format for easy access and reliable connection to source
• input impedance: 1KΩ
• output impedance 14Ω (when the VOLUME turns to MAX）
• dimensions (L x W x H) incl. clip, jack & knob: 30 x 33 x 86 mm (1.18" x 1.29" x 3.39")
• weight: 72 g (0.16 lbs)