About this item 20-Hr Excellent Long Battery Life: These Bluetooth headphones have a long lifetime, up to 16 hours continuous talking time, 20 hours music time, 240 hours standby time, and only take around 1.5 hours to fully charge. Advanced Bluetooth V5.0 Connectivity: Bluetooth V5.0 provides quicker, more stable, and wider compatibility with iOS and Android smartphones, tablets, laptops, and MP3 players. They can also pair easily with any two Bluetooth devices at once. HD & Stereo Sound: These Bluetooth headsets feature CVC6.0 noise-canceling microphones, reducing noise and enhancing sound clarity for phone calls and music. Enjoy the freedom of wireless mobile calls and music while driving, running, and working. Ideal Design for Exercise: These Bluetooth headphones offer extra flexibility, portability, and durability when exercising. Youll never have to worry about them falling off! No pain during prolonged use. Suitable for the gym, working out, and running. Dimensions: 7.87 x 6.3 x