Handheld AA battery pack with built-in driver, connected to 6 feet of 2.5 mm high-bright, long-life NeonString Wire. Side switch selects constant on, slow blink, rapid blink, or off. Belt-clip on back. Please be sure to specify the desired color of NeonString wire. (Batteries are not included.)

As with ALL EL wire drivers, these EL wire drivers do make a high pitched hum. The loudness of it can depend on a number of factors, but no EL wire driver is completely silent.
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