Quick view Wishlist Item Number: PA-25W Amp-Upâ„¢ Personal UHF Voice Amplifier with Wireless Microphone and Up to 40 Channels without Interference! MSRP: $176.52 $108.01 Amp-Up™ Personal UHF Voice Amplifier with Wireless Microphone – with up to 40 Channels that Auto-Pair/Operate Simultaneously Without Interference Now t… Email order to sales@hamiltonbuhl.com Compare Add to Wishlist