Main chip: RTL8723DUBluetooth Instructions:Bluetooth version: V42Bus type: USB11/USB20Transmission distance: 10 metersRF : 10dBm (max)Antenna Gain: 2dBiTransmission speed: /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 80211n, IEEE 80211g, IEEE 80211b, CSMA/CA with ACKTransmission speed: 150MbpsFrequency range: 24~24835GHzWorking channel: 1-14Modulation:80211g: OFDM80211b: CCK(11, 55Mbps), QPSK(2Mbps), BPSK(1Mbps)Transmission rate:80211b: 11, 55, 2, 1 Mbps80211g: 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 : 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/ 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 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.