Powerful Voice AmplifierStable performance with microphone headset and waistband for clear sound. Amplifies your voice and helps reduce strain when speaking for extended periods. FeaturesCompact speaker with stable connectivity, built-in FM receiver, enhanced signal reception, clear audio output, and low noise. Supports TF card and USB drive playback, Bluetooth connectivity, intelligent feedback suppression, automatic recognition of MP3, MP4, WAV and other audio formats. Supports track navigation, fast forward, and rewind with memory playback function. RechargeablePersonal voice amplifier with LED display and rechargeable battery. Up to 22 hours of working time, 3 hours charging time. 2200 mAh battery capacity with long standby duration. ConvenientMini Bluetooth voice amplifier suitable for various situations. Adjustable strap for shoulder or waist carry, includes metal buckle for secure attachment. ApplicationIdeal for teachers, tour guides, instructors, fitness trainers, and public speakers. Designed to project voice clearly to groups of 50 or more people. Size: 8.4 x 9.2 x 2.8 cm / 3.31 x 3.62 x 1.10 inches Package Includes: 1 x Portable Voice Amplifier 1 x Microphone Headset 1 x Waistband 1 x Charging Cable Note: Slight variations may occur due to manual measurement and screen display differences.