Includes receiver and the GB 40 Guitar Transmitter. The transmitter features the Flexjack turnable jack connector that allows it to fit different types of guitars. Simply plug this compact unit into your guitar jack -- no cable or belt pack transmitter required. Also can be used on portable keyboards. The system offers compact size, ease of use, and a host of features. On/low-battery LED. On/mute/off switch and input gain control. Interchangeable color-coded parts for easy channel recognition. Onboard charging connectors (no need to remove battery for recharging). Compact, rugged housing. Powered by a single AAA battery for approximately 12 hours or AAA rechargeable battery for lowest operating cost of any similar units.

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