USB Bluetooth V4.0 Dongle, Class 1 Ultra-small USB Bluetooth adapter, which performs big - Only 2.3 cm long Delivers high speeds and consumes very little energy.< br /> The adapter supports apt-X Stereo. Features: - Chipset: CSR BC8510 - Bluetooth 4.0 + EDR - APT-X stereo encoder - Data transfer rates up to: 2M~3Mbps - Backward compatible with USB 1.1/2.0/3.0 - Supports Bluetooth Low Energy - Class 1 power control (for long range) - Easy pairing - 2.3 cm long - 100m range - Does not interfere and will not be disturbed by 802.11-WLAN - Supports Bluetooth headset for VoIP, MSN , Skype - Connects your mobile to the computer