Latest Enhanced Amplifier voice amplifier features advanced noise reduction technology, anti-interference and anti-howling capabilities, delivering clear, distortion-free sound. Enhances vocal clarity, sensitivity, and projection without requiring raised volume. Rechargeable Voice Speaker This compact voice amplifier provides up to 16 hours of continuous voice amplification or 14 hours of music playback. A full charge takes only 2.5 hours. Ideal for teachers, trainers, singers, coaches, tour guides, retail staff, presenters, and outdoor speakers. Adjustable Headset Microphone Features a flexible gooseneck design for precise microphone positioning near the mouth. Ergonomic construction ensures a secure, comfortable fit. Compact and Portable The K700 Plus portable microphone and speaker measures 4.3 x 3 x 1.1 inches (similar to a smartphone) and weighs 0.38 lbs. Includes a back clip for waistband or pocket attachment, plus a 1.5-meter (59-inch) strap for shoulder or waist wear. Worry-Free After-Sales Service Engineered by a professional audio manufacturer with 30 years of experience. Each unit undergoes rigorous quality testing to ensure reliability and performance. Designed to protect and enhance your voice. Specifications: Dimensions: 120 x 90 x 35 mm Model: T92 Wireless Version: 4G Frequency Response Range: 1 Hz Distortion Rate: 1% Output Power: 15 W