Support for multi-protocol for harmony Software driver for GAP/A2DP/ OVER GATT/HSP V 1.2 /AVRCP V 1.5 /FTP 2.2. Realize the connection between the computer and other devices with Bluetooth protocol. Compatible with for Window /Msta/7/8/10 (For OS system is not supported). Compatible with for systems. When the driver is not installed only the phone/tablet can transfer text/photos; after installing the full version of the driver the computer can be connected to the Bluetooth headset/speaker. Double gold-plated treatment exquisite appearance and wearable better than other materials more delicate shiny and more stable. With the original CSR8510 chip the is stable and stable mode low power consumption and better performance.