Amp-Up Mini makes it easy to be heard without straining your voice. ith its lightweight design, long battery life and clear, crisp amplification, the Amp-Up Mini is a winner and a must-have for teachers, coaches, receptionists, retail associates, sales reps, pharmacists and so many others! hen you’re speaking to a small group, school audience or at an outdoor event, you need to be clearly heard, and Amp-Up Mini packs a lot of punch with quality sound and easy-to-use controls. The button/dial controls are easy to adjust, and it's easy change to different modes and turn the unit on and off. his unit also boasts an easy-to-wear belt clip on the back of the unit PLUS a strap that can easily hang from a hook, keeping it handy. mp-Up Mini allows you to manually select the best frequency to avoid interference. mp-Up Mini comes with a UHF wireless headworn microphone, perfect for any environment and for addressing any audience. • Amplification that’s perfect for small gatherings, classrooms, conference rooms, and more bull; lear, crisp sound bull; urable and wear-resistant ABS plastic housing bull; rgonomic, comfortable, stylish design bull; elt hook for easy-wear bull; etachable strap to attach or hang from hook bull; ack for wired microphone (PA-25M and PA-25LM wired microphones sold separately) bull; uilt-in, high capacity Lithium-Ion battery bull; p to 10W max. output Microphone Specifications bull; nidirectional bull; ensitivity: -35dB +-2dB bull; olymer Battery: 3.7V 450mA bull; orking Voltage: -3.5V ~ 4.2V bull; attery Charging Time: Approx. 2~3 hours bull; perating Time: Approx. 4~5 hours