automatic star finding, Biaxial tracking, Bluetooth/WiFi/USB connection real time clock, SLR shutter control, Aviation motor connector Integrated installation of motor bracket, Biaxial electrical tracking 256 subdivision motor drive, Support connection with ST4/SHC handle 12 - 24V wide voltage power supply Customized extension function: - Electric focusing 1 - Electric focusing 2/rotator - Limit switch - Temperature and humidity sensor High order customized function: - Biaxial AB encode - Interfaces: WiFi antenna Encoder extension interface Rotator motor interface (need DIY by yourself) Electrical focusing motor interface (need DIY by yourself) Right ascension motor interface Declination motor interface Power indicator Power supply: 12 power adapter or lithium battery USB interface: to connect computer or ASIAIR box Intelligent handle interface 2.5mm general SLR shutter control Bluetooth antenna pls see below detials for differents, if you have any doubts, you can contact our service Note: The model as picture, some accessories randomly sent, do not accept the specified, does not affect the use of Colour:Black Material:Metal+Plastic Package Contents: 1 x V4 EQ3D Pro Kit Only the above package content, other products are not included. Note: Light reflection 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.