DescriptionAre you looking for a professional, flexible ear-hanging mic at a reasonable price? Are you looking for a solid, trusted tool that can do more than one at a time? If so, please look at our product! Our ear-hanging mic must meet your needs. It is one of your best choices.Features-Color: Black -Material: ABS -Size: About 29.50X13.00X2.50cm/ 11.59X5.11X0.98inch - Professional quality effect, suitable for performers who cannot hold the microphone during the performance.- Exquisite appearance, light weight, strong, and easy to use, very durable to use.- The sound is sweet, suitable for performing arts, teaching, etc. Very practical. - Wireless connection, which makes this microphone very simple and convenient for you to use. - With the fine workmanship and premium material, it can be used for a long time.Specification -Input voltage: 3.7V -Signal to noise ratio: 85dB -Built-in battery capacity: 500MAH-800MAH -Frequency response range: 100HZ-20KHZ -Life time: 6-8 hours -Charging voltage: DC 5V 300MA -Frequency response: 20HZ-23000HZ -Audio response: UHF 720-820MHZ -Sensitivity: -39dB1dB -Charging time: 2-3 hours -Effective distance: 50 meters