Replacement battery for the pro 2.4GHz wireless transmitter. The Martel police wireless microphone transmitter pack has a rechargeable battery inside it. The police department can change the battery by removing the 2 screws on the shell and snapping the new battery in place. Please give it a 12 hour charge before the first use.
If you need help, contact us at 800-553-5536.
Plug and play.
Compatible Accessories Below
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