amplifier comes with 2 wireless mics. Teachers can move freely , and the elderly can use one as backup or share. The wireless design removes cord hassle, enabling unrestricted movement. amplifier wireless microphone is equipped with a rechargeable battery. A full charge provides up to 20 hours of continuous use. Environment - friendly and cost - effective, it ensures no - interruption use for teachers and the elderly. The portable voice amplifier utilizes advanced audio technology for clear and loud sound. Whether in large or small spaces, it amplifies voice without distortion for accurate message delivery. The wireless voice amplifier is designed to be portable, compact and . Teachers can carry it , and the elderly 't feel burdened during activities. Small size, big Performance. Color: Black Material: plastic Package Contents: 2 x Microphones 1 x Receiver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.