Item Type: Portable Voice Amplifier <br>Material: ABS <br>Weight: Approx. 310g/ 10.9oz <br>Rated Power: 5W <br>Separation Degree: 80dB <br>Distortion: 1% (3.7V, 1kHz, 1W) <br>Operating Voltage: DC3.7V <br>Charging Voltage: DC5.0V <br>Battery: 1PCS 2200mAh lithium battery (shipping with battery) <br>Display: LED display <br>Bluetooth: 5.0 <br>Speakers: 1 x 2.5 in, 1 x 1.0in <br>Audio Format: MP3/WMA/WAV <br>Operating Temperature: -5°~40° <br>Instruction: <br>1. Put the microphone in front of your mouth for maximum amplification. <br>2. Keep a certain distance between the microphone and the speaker. You can hang the speaker on your waist. <br>3. Turn it on and gradually increase the volume as needed.1、With high volume and low feedback features, the output power is 5W, suitable for teachers, fitness coaches. <br>2、Large battery capacity with long service life and strong endurance, no more worry about lacking of electricity. <br>3、The voice is transferred to the device by using an auxiliary port, supports playing memory cards, USB flash drives and FM radios. <br>4、Light in weight, and can be easily worn on the waist or hung around the neck by using the complimentary belt. <br>5、No need to worry about pairing or connectivity, plug and play, provide convenient using experience.1 x Voice Amplifier<p>1 x USB Cable</p><p>1 x Belt</p><p>1 x Wired Headset Microphone</p><p>1 x Instruction</p>