about this project [Wireless Lavalier Microphone]: The wireless microphone comes with two microphones, a receiver and a charging case. Compatible with all models of iPhone and iPad. Support three levels of noise reduction and reverberation, transmission distance 65ft. [Mini Microphone]: Each microphone only weighs 8.6 grams. The microphone measures 1.7 inches long, 0.7 inches wide, and 0.4 inches high. When you clip the mic to your lapel, you can't even feel it. A single lavalier mic takes 1.5 hours to fully charge and lasts for 6 to 7 hours of continuous use, which should meet your needs in most situations. [Unbelievable Time]: 6 to 7 hours of recording time is not enough Don't worry. This is a two-pack of wireless lavalier microphones that also comes with a charging case with a built-in 600mAh battery! A fully charged charging case can fully charge the wireless microphone 8 times! With the charging case, you can alternately use the microphone for 60 hours or more. The size of the charging box is 3.1x2.4x1.1in, and the weight is 60g. It is very convenient to carry! [Easy to use]: Built-in upgraded IC and receiver. No need for bluetooth and APP. First plug the receiver into your iPhone or iPad. Then turn on the wireless microphone and wait 3 seconds. The microphone and receiver will automatically connect. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store