Thank you for viewing! Wireless earphones with Bluetooth 4.0, perfect for calls and music. This product is no longer sold, so please consider purchasing it! - Brand: ELECOM - Bluetooth version: 4.0 - Usage: Calls/Music - Compatible devices: PC, iPhone, Smartphone - Battery life: 6 hours - Connection type: Wireless I bought these a few years ago, but I've never used them, so they are new and unused. They have been stored at home. Please understand. If you have any questions, please comment. I strive for careful and prompt shipping. Thank you!