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Open-Box BOSS WL-20L Guitar Wireless System Condition 1 - Mint

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Wireless freedom made easy.

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.

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.

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-and-play wireless systems for guitar, bass, and other electronic instruments
  • No complicated setup required—simply dock the transmitter and receiver together for about 10 seconds to set the optimum wireless connection
  • Newly developed BOSS technology delivers premium audio performance with rock-solid stability, ultra-low latency (2.3 ms), and 50-foot/15-meter range
  • Built-in rechargeable batteries provide up to 12 hours of continuous playing time
  • Simple charging with a standard USB adaptor (5 V/500 mA or greater)
  • Cable tone simulation reproduces the natural capacitive effect of a 10-foot/3-meter guitar cable (WL-20 model only)
  • Spare WL-T Transmitter available separately
  • Acessories

    • Owner's Manual
      Micro USB cable for charging (*1)
    • *1: Use a standard USB AC adaptor (5 V/over 0.5 A) for charging.

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    WL-20L Guitar Wireless System Specifications:

      Wireless Forma
      • t
      • BOSS proprietary digital audio format
      Wireless carrier frequency
      • 2.4 GHz
      Compatible Channels
      • 14
      • (May vary due to local conditions)
      Transmission Range
      • 50 feet line-of-sight
      • (May vary due to local conditions)
      • 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
      • POWER
      • RECEIVE
      • 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
      • * These figures will vary depending on the actual conditions of use.
      • 87 mm
      • 3-7/16 inches
      • 25 mm
      • 1 inches
      • 38 mm
      • 1-1/2 inches
      • 60 g
      • 3 oz
        Nominal Input Level
        • -10 dBu (1 M ohm)
        • BATTERY
        • 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
        • * These figures will vary depending on the actual conditions of use.
        • 87 mm
        • 3-7/16 inches
        • 22 mm
        • 7/8 inches
        • 36 mm
        • 1-7/16 inches
        • 43 g
        • 2 oz

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