2.4 GHz Transmit and Receive. Transmit power and receive sensitivity comparable to a Class 1 Bluetooth device. Standard Debug Connector (10-pin 50- JTAG) In-System Programming (ISP) Serial Connector Expansion connector intended for -Ubertooth communication or other uses. Six Indicator 2.4 GHz Duck Antenna Included Material:plastic colour:black Package Contents: 1 x Ubertooth One 2.4 GHz Wireless Development Bluetooth Sniffer 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 a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.