Please note, this item ships from an international seller. Expected delivery is 10-15 days. Bluetooth Neck Headphones, V5.1 Wireless Noise Cancelling Headphones with Microphone, Suitable for Running Outdoor Sports, for Android and IOS Systems Selling point: 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. 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. 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. 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 gym-, training and running. parameter: Bluetooth version: Bluetooth 5.1 Bluetooth receiving distance: 10m Charging time: 2 hours Use mode: bluetooth mode/card mode Include: one earphone One charging cable