Main Chip: RTL8723DU Bluetooth Instructions: Bluetooth Version: V4.2 Bus Type: USB1.1/USB2.0 Transmission Distance: 10 meters RF Power: 10dBm (max) Antenna Gain: 2dBi Transmission Rate: /S Working Current: 100mA - 200mA(BT+WIFI) Current varies with working state Support Operating System: WIN 7/WIN8/10/11 Operating System WIFI Description: Supported Standards and Protocols: IEEE 802.11n, IEEE 802.11g, IEEE 802.11b, CSMA/CA with ACK Transmission Rate: 150Mbps Frequency Range: 2.4~2.4835GHz Working Channel: 1-14 Modulation: 802.11g: OFDM, 802.11b: CCK(11, 5.5Mbps), QPSK(2Mbps), BPSK(1Mbps) Transmission Rate: 802.11b: 11, 5.5, 2, 1 Mbps 802.11g: 54, 48, 36, 24, 18, 12, 9, 6 Mbps 802.11n: up to 150Mbps Receiving 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: 2dBi Spread Spectrum Technology: DSSS (Direct Sequence Spread Spectrum) Working Current: 100mA - 200mA(BT+WIFI) Current varies with working state Support Operating System: Windows 2000/XP/Vista/WIN 7/WIN 8/10/ OS Operating System Usage Environment: Operating Temperature: -20 Celsius to 45 Celsius Storage Temperature: -40 Celsius to 70 Celsius Color: Black Material: Metal+ABS Package Contents: 1 x USB WiFi bluetooth adapter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.