Specifications
Wireless FormatBOSS proprietary digital audio formatWireless carrier frequency2.4 GHzCompatible Channels14
(May vary due to local conditions)Transmission Range50 feet line-of-sight
(May vary due to local conditions)Latency2.3 msDynamic Range110 dB or greaterFrequency Response20 Hz–20 kHzNominal Output Level-10 dBuOutput Impedance1 k ohmRecommended Load Impedance10 k ohms or greaterIndicatorsPOWER
RECEIVEConnectorsOutput plug: 1/4-inch TRS phone type
TRANSMITTER jack: 1/4-inch TRS phone type
DC IN 5 V port: USB Micro-B typePower SupplyRechargeable lithium-ion battery
Supplied from the DC IN 5 V portCurrent DrawDuring wireless operation: 60 mA
While charging: 500mABattery charging timeCharging only the receiver: Approximately 3 hours
Charging simultaneously with the transmitter: Approximately 4 hoursExpected battery life under continuous useApproximately 10 hours
* These figures will vary depending on the actual conditions of use.AccessoriesOwner’s Manual
Leaflet USING THE UNIT SAFELY
Transmitter
Micro USB cable for charging (*1)
*1: Use a standard USB AC adaptor (5 V/over 0.5 A) for charging.SIZE AND WEIGHT(RECEIVER)Width87 mm
3-7/16 inchesDepth25 mm
1 inchesHeight38 mm
1-1/2 inchesWeight60 g
3 ozSPECIFICATIONS (TRANSMITTER (WL-T))Nominal Input Level-10 dBu (1 M ohm)IndicatorBATTERYConnectorsInput plug: 1/4-inch TRS phone type
DC IN 5 V port: USB Micro-B typePower SupplyRechargeable lithium-ion battery
Supplied from the DC IN 5 V portCurrent Draw350mABattery charging timeApproximately 3 hoursExpected battery life under continuous useApproximately 12 hours
* These figures will vary depending on the actual conditions of use.SIZE AND WEIGHT (TRANSMITTER (WL-T))Width87 mm
3-7/16 inchesDepth22 mm
7/8 inchesHeight36 mm
1-7/16 inchesWeight43 g
2 oz
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.
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!
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-20: Built-In Cable Tone Simulation
If you play a guitar or bass with standard passive pickups (the most common pickup type), the WL-20 model is probably your best choice. It includes built-in cable tone simulation, which reproduces the natural capacitive effect that’s introduced when using a 10-foot/3-meter guitar cable with passive pickups. This effect rolls off the treble very slightly, giving you the warm tone you’re used to hearing with a normal cable.
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.