BOSS / WL-20

Simply connect it to your guitar or bass and you're ready to go with this wireless system. It delivers high-quality, stable connection with ultra-low latency of 2.3 ms, allowing for more dynamic live performances than ever before.

BOSS / WL-20
■ Wireless set for guitar/bass
■ Features
・ Wireless system that can be used immediately by simply connecting to a guitar, bass, or electronic instrument
・ Simply dock the transmitter to the receiver for about 10 seconds to automatically establish the optimal wireless connection
・ BOSS's proprietary wireless technology achieves high-quality, stable connection with ultra-low latency of 2.3 ms. (Transmission range: 15m)
・ Equipped with a built-in rechargeable battery. When fully charged, the transmitter can be used for up to 12 hours and the receiver for up to 7 hours.

・Easy to charge with a general-purpose USB adapter (5V/500mA or more)

・Cable tone simulation reproduces the natural sound quality change when using a 3m guitar cable.

■Specifications



・Wireless communication format: Digital audio using BOSS's proprietary method

・Wireless carrier frequency: 2.4GHz

・Maximum number of channels that can be used simultaneously: 14 (varies depending on the situation at the location of use)

・Transmission range: Line of sight 15m (varies depending on the situation at the location of use)

・Latency: 2.3ms

・Dynamic range: 110dB or more

・Frequency response: 20Hz to 20kHz

・Nominal output level: -10dBu

・Output impedance: 1kΩ

・Recommended load impedance: 10kΩ or more

・Indicator: POWER indicator (also used for battery check)

RECEIVE Indicators

Connection terminals Output terminal: TRS standard type

TRANSMITTER terminal: TRS standard type

DC IN 5V terminal: USB micro-B type

Power supply: Rechargeable lithium-ion battery (obtained from DC IN 5V terminal)

Current consumption Wireless operation: 60mA

Charging: 500mA

Battery charging time Receiver only: Approx. 3 hours Simultaneous charging with transmitter: Approx. 4 hours

Continuous battery use time: Approx. 7 hours

External dimensions: 87 (width) x 25 (depth) x 38 (height) mm

Weight: 60g

Accessories: Instruction manual, ""Safety precautions"" leaflet, transmitter,

Micro USB cable for charging (*1), warranty card,

Roland user registration card

*1: For charging, a commercially available USB AC adapter (5V/0.5A or higher).
* 0dBu = 0.775Vrms

- Nominal input level: -10dBu (1M Ω)
- Indicator: BATTERY
- Connection terminals Input terminal: Standard TRS type
　　　DC IN 5V terminal: USB micro-B type
- Power supply: Rechargeable lithium-ion battery (obtained from DC IN 5V terminal)
- Current consumption: 350mA
- Battery charging time Charging transmitter only: Approximately 3 hours
　　　　　　Charging simultaneously with receiver: Approximately 4 hours
- Continuous use time: Approximately 12 hours
- External dimensions: 87 (width) x 22 (depth) x 36 (height) mm
- Weight: 43g
* 0dBu = 0.775Vrms

* The following guitars are not supported.

● The following types of devices have limited specifications.

-Devices with a stereo standard type (TRS standard type) OUTPUT terminal

※ Only the signal from the L side (Tip side) is output.

● The following types of guitars are not supported.

-Guitars that do not have enough space (cylindrical space with a diameter of 18.5 mm and a depth of 5 mm) to attach the transmitter to the mounting jack

-Guitars with special electrical wiring specifications

- Some guitars with active pickups (※1)

- YAMAHA silent guitars (※2)

(※1) In the active circuit of a guitar, the general wiring method for the TRS jack output is Tip = audio, Sleeve = ground, and Ring is for battery ground. In rare cases, there are guitars where the Ring and Sleeve are wired in reverse, in which case the active circuit of the guitar will not work properly.

(※2) It will not work due to the electrical wiring specifications.

*Some models of guitars/basses equipped with active pickups cannot be used.