Bluetooth Headset - V5.0 Wireless Handsfree Earpiece Built-in Dual Mic Noise Cancelling, 10 Days Standby 16Hrs HD Talktime Ultralight Headset for iPhone Android Samsung Laptop(Blue)

"CVC 8.0 Noise Cancellation: This hands-free headsets employs CVC 8.0 technology, built-in HD dual microphones, blocking interfering background noise, ensuring that the sound during a call is clear to you and the other end, for video chats and calls And the classroom provides excellent, natural and crystal sound quality Long Lasting Battery Life: Bluetooth Headset for cell phones, with Type-C fast charging, Only 2.5h charge time, 16h talk time, 10 days standby, this Bluetooth headset uses QCC-3020 chip, ability to pair with two devices allowing transition between incoming calls and on immediate going calls Comfortable Wearing: Lightweight design (only 0.3oz), with ear hooks that fit the ears, firmly fit the left/right ears."