Amp-Up Personal UHF Voice Amplifier with Wireless Microphone – with up to 40 Channels that Auto-Pair/Operate Simultaneously Without Interference.\n\nBeing clearly heard without straining your voice can be a constant struggle, especially if you are wearing a mask. Amp-Up makes it easy to be heard without straining your voice. With its lightweight design, long battery life and clear, crisp amplification, the Amp-Up™ Personal Amplifier is a winner and a must-have for teachers, coaches, lectureres, speakers, and others! \n\nWhen you’re speaking to a group of people, school audiences or at outdoor events, you need to be clearly heard, and Amp-Up™ packs a lot of punch with quality sound and easy-to-use controls. Amp-Up™ has top-mounted button/dial controls, making it easy to adjust the sound volume, change to different modes and turn the unit on and off. \n\nWith its 40 multi-channel feature, Amp-Up™ allows for up to 40 different PA-25W units to be paired and operated simultaneously near each other without creating any channel conflict between wireless head-worn microphones and their main amplification units. Amp-Up's auto-pairing feature will automatically pair to an available channel to avoid interference, when using multiple units. This auto-pairing continues for up to 40 channels. \n\nUsing Bluetooth technology, you can stream audio/music content from your Bluetooth-enabled device. Also, play content from a USB/TF card or via AUX-IN. \n\nAmp-Up Wireless (PA-25W) comes with a UHF wireless headworn microphone, a carrying strap and a waistband hook for hands-free use. \n\nWith its 40 channel auto-pairing feature eliminating interference and conflicts when using multipe PA-25W units near each other; amplification that’s perfect for classrooms, conference rooms, small gatherings and more; clear, crisp sound: durable and wear-resistant ABS plastic housing; ergonomic, comfortable, stylish design; easy-to-read LCD screen; built-in, high capacity Lithium-Ion battery, Amp-Up™