1、It is the latest version and the fastest new product, which has strong compatibility, ultra‑high‑speed stability, one‑key matching function, and longer receiving distance. 2、Suitable for Bluetooth class I standard, make the coverage more extensive. 3、Suitable for Wake‑on‑WLAN, for Wake‑on‑Bluetooth and other functions to make wireless terminal equipment more power‑saving. 4、Have powerful function, fast upgrade speed, theoretical speed is 3meters/s. 5、Suitable for Win7,for Vista, for XP and other mainstream operating systems (with blue light indicator). 1 x Adapter1 x Compact Disc Condition: 100% Brand NewItem Type: Adapter for Bluetooth Material: ABSType: Copper-Plated USB InterfaceChip: CSR ChipFeatures: 1. Fit for Bluetooth 4.0 specification 2. Powerful function (dual mode, suitable for Bluetooth device) 3. Quickly upgrade (theoretical speed is 3meters/s)This adapter is currently the highest version and the fastest new product. It has strong compatibility, ultra-high speed and stability, with one-key matching function, and longer receiving distance (Class 2: 20 meters).Suitable for Bluetooth Class I standard, making the coverage largerSuitable for Wake-on-WLAN and other functions to make wireless terminal devices more power-saving.Suitable for Win7,for Vista, for XP and other mainstream operating systems (with blue light indication).Suitable Operating System: Suitable for XP, for Windows 7 (32-bit and 64-bit) and other mainstream operating systems.Size: Approx. 26 x 15 x 7mm / 10.2 x 5.9 x 2.8inWeight: Approx. 3g / 0.1ozStandard: For Bluetooth V 4.0Overview: Low Power, Dual ModeFrequency Band: 2.402GHz- 2.480GHzSensitivity: -86dbm@ 0.1Radio Frequency Transmission Power: +6 dBm (Class II)