Authentic Earbuds With Power Bank 3500mAh (Can charge your phone). Communication: Wireless. Noise Cancelling: Yes. Charging case battery: 3500mAh. Compatible: All mobile phones. Wireless Connectivity: Bluetooth 5.0. Connectivity range: 10m. Interface Type: USB Port. Function: Multimedia, Bluetooth, Waterproof, Noise-Cancelling, HiFi. Compatible with all smart phones, Tablets and any bluetooth supported devices. Loudspeaker diameter: 6mm. Frequency response range: 20Hz to 20KHz. Continuous working time: 5h. Earphone battery: 40mAh. we offer delivery service.