Boss WL-20L Wireless Instrument System

Be Free of Tangled Cables and Bulky Equipment with the Boss WL-20L Wireless Instrument System

Have you always dreamed about going wireless with your instrument, but were put off by the complicated setup, tone loss, and bulky adds-ons? If so, the WL-20 series is for you! Driven by new lightning-fast BOSS tech, these ultra-compact music tools deliver premium sound and plug-and-play operation that completely eliminates all the hassles normally associated with wireless systems.

Once you experience the easy wireless independence provided by the WL-20 series, you’ll never go back to using a standard cable again! With no worries about cable management, you’re able to move about freely while playing at home, jamming with friends, and performing on stage. During sound check at a gig, you can listen to your tone out front and dial in the best sound for your audience. And with the ability to roam and interact with other musicians, your live shows will be more dynamic and entertaining than ever.

Plug In and Rock

A WL-20 system is literally as simple to use as a standard guitar cable. The small transmitter plugs into your instrument, while a matching receiver plugs into a pedal or amp. That’s it!

Lightning-Fast BOSS Wireless Technology

Equipped with high-performance BOSS wireless technology that debuted in the Katana-Air wireless guitar amp, the WL-20 series delivers exceptional sound quality with wide dynamic range. Working in the 2.4 GHz frequency band, the optimum channel is set automatically to ensure rock-solid audio performance with absolutely no drop-outs. And with ultra-low latency of just 2.3 ms, you’ll always enjoy great playing feel with no lag whatsoever. Up to 14 BOSS wireless systems can be used simultaneously in one space, allowing multiple musicians to enjoy wireless freedom at the same time. Environmental conditions may affect the actual number of simultaneous systems available.

Automatic Wireless Setup

With the WL-20 series, there’s no fiddly channel setup required. Just dock the transmitter and receiver together for about 10 seconds to automatically set the optimum connection.

Easy Charging via USB-

When docked, the built-in batteries in the transmitter and receiver can be charged together with a standard USB adaptor (5 V/500 mA or higher), the same type used with the latest smartphones and tablets. The transmitter and receiver can also be charged separately, and a micro USB cable is included for charging.

WL-20L: No Cable Tone Simulation

The WL-20L model is functionally identical to the WL-20, with the exception that it eliminates cable tone simulation. This makes it the best choice for instruments where cable capacitance has little or no effect on the tone, such as an acoustic/electric guitar with an onboard preamp, a guitar or bass with active pickups, or a line-level device like a keytar or Roland’s Aerophone digital wind instrument. The WL-20L also works great with passive pickups if you don’t need the subtle treble roll-off provided by cable tone simulation.

* The transmission range may vary due to local conditions.

* A full charge provides 12 hours of time for the transmitter and 10 hours for the receiver.*

Specifications

Receiver

• Wireless Format: BOSS proprietary digital audio format
• Wireless carrier frequency: 2.4 GHz
• Compatible Channels: 14
• Transmission Range: 50 feet line-of-sight
• Latency 2.3 ms
• Dynamic Range: 110 dB or greater
• Frequency Response: 20 Hz–20 kHz
• Nominal Output Level: -10 dBu
• Output Impedance: 1 k ohm
• Recommended Load Impedance: 10 k ohms or greater
• Indicators: POWER, RECEIVE
• Connectors: Output plug; 1/4-inch TRS phone type, TRANSMITTER jack; 1/4-inch TRS phone type, DC IN 5 V port; USB Micro-B type
• Power Supply: Rechargeable lithium-ion battery, Supplied from the DC IN 5 V port
• Current Draw: During wireless operation – 60 mA, While charging – 500mA
• Battery charging time: Charging only the receiver – Approximately 3 hours, Charging simultaneously with the transmitter – Approximately 4 hours
• Expected battery life under continuous use: Approximately 10 hours
• Accessories: Owner’s Manual, Leaflet USING THE UNIT SAFELY, Transmitter, Micro USB cable for charging

Receiver Size & Weight

• Width: 87 mm; 3-7/16 inches
• Depth: 25 mm; 1 inches
• Height: 38 mm; 1-1/2 inches
• Weight 60 g; 3 oz

WL-T Transmitter

• Nominal Input Level: -10 dBu (1 M ohm)
• Indicator: BATTERY
• Connectors: Input plug – 1/4-inch TRS phone type, DC IN 5 V port; USB Micro-B type
• Power Supply: Rechargeable lithium-ion battery, Supplied from the DC IN 5 V port
• Current Draw: 350mA
• Battery charging time: Approximately 3 hours
• Expected battery life under continuous use: Approximately 12 hours

WL-T Transmitter Size & Weight

• Width: 87 mm; 3-7/16 inches
• Depth: 22 mm; 7/8 inches
• Height: 36 mm; 1-7/16 inches
• Weight: 43 g; 2 oz

Manufacturer: Boss
Model: WL-20L
SKU: I554015-N-6-WHXC
UPC: 761294513675

We are Chuck Levin’s Washington Music Center

Since 1958, Chuck Levin’s Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Music®—from instruments and recording gear to pro audio, rentals, and repair services.

Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE line—exclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.

Chuck Levin’s isn’t just a store—it’s a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.