Boss WAZA-AIR

Wireless Personal Guitar Amplification with Real "Amp-in-Room" Tone

The Boss Waza-Air is a complete over-ear guitar amplification system that replaces the cable-bound combo amp and monitor rig most players drag into a hotel room or apartment. Inside the cans, BOSS packs five Katana-derived amp voices, more than fifty tweakable effects, a 2.4 GHz proprietary wireless link, and a digital 3D spatial engine driven by an integrated gyro sensor. Plug the WL-T transmitter into the guitar's output, slip the headphones on, and the system renders a virtual combo behind your shoulder so every chord keeps its air and dimension.

A Headphone Guitar Amp Built Around Spatial Sound, Not Just Modeling

Most practice amps simulate a sound; this one simulates a room. The defining element is the integrated gyro sensor combined with BOSS spatial technology, which tracks head orientation in real time and shifts the apparent position of the amp around the listener. Three ambience setups — Surround, Static, and Stage — recreate a recording-studio space, a moving-source rig, and a live backline positioned behind the player. Stage mode even pulls Bluetooth streaming audio into the virtual backline so songs, lessons, and solos share the same virtual venue.

Stage-Class Tones: Five Amp Voices and 50+ Effects On Your Head

Tones are derived directly from the BOSS Katana stage amplifier series, covering clean through high-gain plus a full-range voice that handles bass and acoustic-electric guitars. With mod, delay, and reverb types tuned specifically for the spatial engine, every preset is editable through the free BOSS Tone Studio app for iOS and Android and storable to one of six onboard memory slots.

• Five Katana-derived amp voices cover clean to high-gain territory and add a full-range option that handles bass and acoustic-electric guitars.
• Effects: 50+ customizable types — covers modulation, delay, reverb, and more, all optimized for the 3D spatial engine
• Onboard Memories: 6 user-configurable slots — recall favorite Livesets directly from the dedicated CH UP / CH DOWN buttons on the earcup

Wireless Signal Path: 2.4 GHz Guitar Link, Bluetooth Audio, and Head-Tracking 3D

A cable-free rig only works if latency is invisible, so the proprietary 2.4 GHz BOSS wireless system delivers ultra-low-latency transmission of the guitar signal while Bluetooth takes care of stereo music, lessons, and backing tracks. The gyro sensor's head-tracking data drives the spatial processor, meaning that when the listener turns, the virtual amp and room reflections respond rather than locking rigidly to the head.

• Wireless System: 2.4 GHz proprietary BOSS digital link (WL-T transmitter) — TRS 1/4" plug, ultra-low-latency, around 12 hours per charge
• Bluetooth handles stereo music, lessons, and play-along duties while an independent volume control blends backing tracks with the live amp signal in real time.
• Spatial Engine: 3D ambience with gyro tracking (Surround / Static / Stage) — sound localization stays anchored in space as the player's head turns

Headphone Hardware: 50 mm Drivers, Lithium-Ion Battery, and a Travel-Ready Fold

The over-ear chassis is built around custom 50 mm dynamic drivers housed in conforming earpads, a wide headband, and chrome-plated metal hardware for daily gig-bag abuse. Lithium-ion cells inside both the cans and the WL-T transmitter recharge over USB, and both units support auto standby and wake to preserve runtime between sessions.

• Drivers: 50 mm custom dynamic drivers — over-ear earpads shaped for long practice sessions without hot spots
• Battery Life: ~5 hours (headphones) / ~12 hours (WL-T) — roughly 3 hours to a full charge on each unit
• At 320 g, the cans fold flat and slip into a guitar-bag pocket between gigs.

Silent Practice for Apartment Players, Travelling Musicians, and Tone Tweakers

Built for electric guitarists who want a convincing amp experience without making noise, this rig slots naturally into the lives of apartment dwellers, late-night players, parents with young children, and touring musicians who refuse to check a combo amp on the road. Bedroom producers, hobbyists who already own stage amps but need a quiet alternative, and bass or acoustic-electric players all benefit from the full-range voice and the wireless-to-Bluetooth routing that puts lessons, play-alongs, and backing tracks into the same virtual stage. Optional FS-1-WL wireless footswitch and EV-1-WL expression pedal extend hands-free patch changes for players who like to dial rather than just play. Stage mode, gyro tracking, and a full app editor reward tone tinkerers as much as late-night jammers.

Boss Waza Tradition Reimagined for Silent Practice

The system continues Boss's Waza tradition of combining premium amp, effects, and wireless engineering into a category-defining product. Inheriting digital wireless DNA from the acclaimed WL-series transmitters and the stage-grade amp modeling that powers the Katana series, this headphone amplifier ties all of those elements to a gyro-driven 3D spatial engine for the first time.