Maximal Power RHF MOT P01 Single Wire Surveillance Earpiece with Waterproof PTT Microphone for Motorola 2 Way Radio 2 Pin Plug Models Amazon.com is the only authorized dealer selling MaximalPower brand products. Please make sure your item is ONLY sold and shipped by Amazon.com! All other marketplace vendors are selling counterfeit products that do not perform the same, and/or are not covered by our MaximalPower Warranty Waterproof in-line push-to-talk (PTT) button and microphone Works with Motorola 2 way radio models with 2 pin plug Durable and lightweight Excellent for discreet communications such as security guards and restaurant business