Style : In-Ear Communication : Wireless Connectors : None Wireless Type : Bluetooth Vocalism Principle : Dynamic Control Button : Yes Volume Control : Yes Active Noise-Cancellation : Yes Function : For Mobile Phone,for Video Game,For iPod,Sport,Common Headphone Plug Type : Wireless Sensitivity : 122±3dB Frequency Response Range : 20-20000Hz Line Length : None Resistance : 32Ω Waterproof : Yes Model Number : T2 Bluetooth Wireless Earphone Support Memory Card : No Support APP : Yes Is wireless : Yes With Microphone : Yes Brand Name : teamyo Net weight : 56g Color : Black/White Talk time : About 4 hours Standby time :: More than 160h Communication distance : 10m Bluetooth version : V5.0 Support Apt-x : No Feature 1 : Left and right earphone can be used separately Feature 2 : wireless stereo bluetooth earphone Feature 3 : Bluetooth headphone Feature 4 : Wireless Earphone