Wireless tie-clip amplifier: small and light, loud volume, anti-howling, suitable for tour guides, training, lectures and multiple scenarios. Clip-clip wearing: free your hands and refuse to be bound. The newly upgraded tie-clip microphone gets rid of the traditional head-mounted headset and wired wear, making it more beautiful and more comfortable to use; small and portable, freeing your hands. High performance: 76mm large speaker with internal magnetism, highly restored human voice, 5W true power, loudness coverage of more than 100 people, smart DSP chip, smart noise reduction. Magnetic hidden integrated design: The microphone end of the speaker is magnetically hidden on the back of the box to maintain integrity. It is done in one go! Use, storage, charging, and carrying are all hassle-free! Microphone type: tie-clip microphone Built-in battery capacity: 50mAh-100mAh (inclusive) Rated power: 5W Signal-to-noise ratio: greater than equal 60dB Radio head: capacitor Battery: built-in battery Charging voltage: 5V=1A Battery capacity: 2000mAh Frequency response range: 20Hz-20kHz Color:White Material:plastic Package Contents: 1 * Lavalier Microphone