V5.1 for Running for Android Sports Systems and Headphones Neck with Microphone Suitable iOS Outdoor Headphones Noise Cancelling Bluetooth Wireless Jaybirds Wireless Earbuds (Blue, One Size)

One charging cable
one earphone
Bluetooth version: Bluetooth 5.1
Use mode: bluetooth mode/card mode
Charging time: 2 hours
8-10 Hours Long Battery Life: These bluetooth earphones have long playback time, up to 8 hours of continuous talk time, up to 8-10 hours of music time, up to 48 hours of standby time, and only about 2 hours to fully charge.
Bluetooth receiving distance: 10m
IDEAL DESIGN FOR SPORTS: These bluetooth earphones offer greater flexibility, portability and durability while exercising. You never have to worry about these earphones falling out. No pain for a long time. Perfect for -, training and running.
HD & Stereo: This bluetooth headset features a CVC6.0 noise-cancelling microphone that reduces noise and improves sound clarity for calls and music. Enjoy the freedom of wireless mobile calls and music while driving, running and working.
Advanced Bluetooth V5.1 Connectivity: Bluetooth V5.0 provides faster, more stable and wider compatibility with iOS and Android smartphones, tablets, laptops, MP3 players. It can also easily pair with Bluetooth devices at the same time.