• Wireless Mic Specifications:
• Direction: Unidirectional
• Sensitivity: -61dB +-1dB (0dB=1V/Pa)
• Polymer Battery: 3.7V 550mA
• Working voltage: 3.7V
• Impedance: ≤ 2.2KOhm

Amp-Up™ Personal UHF Voice Amplifier with Wireless Microphone – with up to 40 Channels that Auto-Pair/Operate Simultaneously Without Interference Now that wearing a mask is the new normal, being clearly heard is a constant struggle. 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™ Amplifier is a winner and a must-have for teachers, coaches, receptionists, retail associates, pharmacists and others! When you're speaking to a small group, school audience or at an outdoor event, 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. Amp-Up™ now has a 40 multi-channel feature, allowing up to 40 different PA-25W devices can be paired and operated simultaneously near each other without creating any channel conflicts between wireless head-worn microphone and its main amplification unit. Amp-Up™ has an auto-pairing feature, that when using multiple units, will automatically pair to an available channel to avoid interference. This auto-pairing continues for up to 40 channels. Using 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. Amp-Up™ Wireless (PA-25W) comes with a UHF wireless headworn microphone, a carrying strap and a waistband hook for hands-free use. • Supports up to 40 PA-25W devices that are paired/operated near each other, without any conflicts. • Automatically pairs, when using multiple units, to up to 40 available channels. • 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 • Wireless headworn microphone • Playback from any Bluetooth-enabled device, USB/TF card or via AUX-IN • Easy-to-read LCD screen • Built-in, high capacity Lithium-Ion battery • Up to 25W output • PA-25W can support up to 32GB memory media card which can store approx. 500 hours of voice data A wired, headworn microphone is an available accessory – PA-25HM (sold separately) A lapel-worn microphone is an available accessory – PA25-LM (sold separately)