• 2.4G Wireless Connection: 2.4G wireless transmission protocol, adaptive frequency hopping, strong anti-interference, stable signal, long transmission distance
• Easy to Use: Just plug and play, automatic pairing, no need to download any APP, extremely low latency (delay<20ms), making the audio and video synchronized
• Low Power Consumption: Transmitter <15mA, receiver <25mA
• Support Recording When Charging: Support slow charging or fast charging of mobile phones
• Clear Microphone: Built-in 360-degree omnidirectional high-definition high-sensitivity microphone, capture clear sound 
• Battery Capacity: Charging bin is 200mAh, microphone is 45mAh (1pc)
• Wide Compatibility: Compatible with 8-pin interface mobile phones and tablets
• Frequency Response: 20HZ-20KHZ
• Designed for iPhone: With a 8-pin plug, it's compatible with iPhone and other devices with a 8-pin port

Note: This is not earphones. It's only microphones wearing on the ears.