TAKSTAR Portable Voice Amplifier Wired Ear-mounted Microphone Shoulder Strap 10W 2000mAh Battery Megaphone PA System for Teachers Safety Exercises Outdoor Indoor Use Mini Voice Amplifier Features: 【Versatile and Stylish】: The Portable Voice Amplifier is designed with a sleek and modern appearance, making it perfect for teachers, safety drills, outdoor activities, and indoor events. 【Powerful Audio Output】: Equipped with advanced digital technology, this voice amplifier delivers a powerful 10W audio output. It ensures clear and loud sound projection, allowing you to be heard even in noisy environments. 【Excellent Sound Quality】: With its high-quality neodymium magnet speaker, this mini voice amplifier offers exceptional sound performance. It is lightweight yet produces rich and superior sound quality, ensuring an immersive listening experience. 【Low-THD Technology】: The voice amplifier features the innovative LOW-THD adaptive technology, minimizing any noticeable distortion when operating at high power levels. You can enjoy crystal-clear sound without compromising on volume or clarity. 【Multiple Connectivity Options】: This versatile device supports wireless playback and can be easily connected to your smartphone, computer, or tablet. Additionally, it has an auxiliary audio input function, allowing you e it as a portable speaker. With its built-in indicator lights, you can conveniently monitor the amplifier's status. The long-lasting lithium battery provides up to 10 hours of continuous usage, making it energy-efficient and environmentally friendly. Specifications: Voice Amplifier: Color: Black, White (optional) Frequency Response: 80Hz-18KHz Rated Power: 5W Peak Power: 10W Speaker Impedance: 4 Ω Working Voltage: DC 3.5V-4.2V Battery: 3.7V/2000mAh Charging Voltage: DC 5V/1.5A Charging Time: approximately 2 hours Usage Time: approximately 10 hours Charging Method: Type-C BT Version: 5.0 Product Size: 10 * 9 * 3.6cm/3.9 * 3.5 * 1.4inch Item Weight: 177g/6.2oz Headworn Microphone： Pickup: Backed electret Directionality: Single directional Frequency Response: 100Hz-12.5KHz Sensitivity: -45 ± 3dB (0dB=1V/Pa, at 1KHz) Note: Due to the different display screen and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Packing List: 1 x Voice Amplifier 1 x Wired Headset Microphone 1 x Charging Cable 1 x Shoulder Strap 1 x Instruction Manual