Recording function: One button recording, easy to record your voice and send it repeatedly. The function only works when you insert a TF card. Long working time: Up to 10 hours of continuous working time once the amplifier is fully charged. With the built-in 1000mAh battery, it can be easily charged via a USB cable. Compact size and light weight: small size of only 4 x 2.9 x 1 inches and 4.5 ounces weight. You can use the back clip to attach it to your belt or bag. You can also use the waist belt to tie around the waist or hang it on the neck. Multifunctional and easy to use: voice amplifier / Bluetooth speaker / portable FM radio 3 in 1, supports playback of TF cards (Micro SD). One button switch, one button loop and repeat function. Powerful sound and no whistle/noise: high-quality power amplifier chip and advanced master control for high fidelity amplifiers. With double voice coil and high-performance speaker, the sound is clear and clear, no noise and no distortion, with long range. › See more product details Model: Size: Color: