frisky tech Bluetooth version: Bluetooth v5.0 + EDR, Wireless Earbuds Stereo Bluetooth  (Red, In the Ear)

Superior sound quality with DSP intelligent noise reduction technology, this Earbuds can deliver high quality music and enjoyable listening experience for compatible devices. Bluetooth V4.2 - Easy to pair with your smart phones, tablets and other Bluetooth enabled devices. This Bluetooth wireless headset can connect two mobile phones at the same time. It means you can well give consideration to your life and work. Strong Wireless Signal. You can enjoy skip-free music in a 10-meter working distance. Ultra long battery life. The Bluetooth headphone supports up to 4-5 hours of talking or playing music with 60mAh polymer Li ion battery for one off full charge. It also can tell you the caller's number automatically when calling. Make your life more convenient.