Main chip: RTL8723DUBluetooth Instructions:Bluetooth version: V4.2Bus type: USB1.1/USB2.0Transmission distance: 10 metersRF power: 10dBm (max)Antenna Gain: 2dBiTransmission speed: 3M/SWorking current: 100mA - 200mA(BT+WIFI) The current varies with the working modeSupport operating system: WIN 7/WIN8/10/11 operating systemWIFI description:Supported standards and protocols: IEEE 802.11n, IEEE 802.11g, IEEE 802.11b, CSMA/CA with ACKTransmission speed: 150MbpsFrequency range: 2.4~2.4835GHzWorking channel: 1-14Modulation:802.11g/n: OFDM802.11b: CCK(11, 5.5Mbps), QPSK(2Mbps), BPSK(1Mbps)Transmission rate:802.11b: 11, 5.5, 2, 1 Mbps802.11g: 54, 48, 36, 24, 18, 12, 9, 6 Mbps802011n: up to 150MbpsReceive Sensitivity:130M: -65dBm@10% PER;108M: -65dBm@10% PER;54M: -65dBm@10% PER;11M: -87dBm@8% PER;Transmission distance:Up to 100 meters indoors, up to 200 meters outdoors (depending on the environment)RF power: 16dBm (max)Antenna Gain: 2dBiSpread Spectrum Technology: DSSS (Direct Sequence Spread Spectrum)Working current: 100mA - 200mA(BT+WIFI) The current varies with the working modeSupport operating system: Windows 2000/XP/Vista/WIN 7/WIN 8/10/MAC OS operating systemUse environment:Operating temperature: -20Celsius to 45CelsiusStorage temperature: -40Celsius to 70CelsiusColour:blackMaterial:Metal+ABSPackage Contents:1 x USB WiFi bluetooth adapterOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.