Description: - 【Powerful Voice Amplifier】Stable performance, with microphone headset and waistband, clear sound. Amplifies your voice and saves your throat when you have a difficult time speaking loudly enough. - 【Features】Mini speaker, The connection is stable enough, built in FM receiver, and a wide range of enhanced signal reception, clearer sound, low noise, support SD card, Bluetooth connection to play, intelligent anti howling - 【Rechargeable】Personal voice amplifier is rechargeable. Working time is up to 20 hours, charging time 3 hours. 2200mAh battery capacity, long standby time. - 【Convenient】 The mini Bluetooth voice amplifier is suitable for most occasions, an adjustable belt for hanging by the shoulder or waist, equipped with a metal buckle. - 【Application】This megaphone speaker is very suitable for teachers, tour guides, promoters, fitness and yoga instructors, etc. A big speaking to 50 more members in your group. Size Chart: 8.4cmx9.2cmx2.8cm/3.31inchx3.62inchx1.10inch Package Includes: 1 Portable Voice Amplifier 1 Microphone Headset 1 Waistband 1 Charging Cable Note: Please allow slightly errors due to manual measurement and different monitors.