Cashbox expert channel effector ua-1000Friends who often go to KTV know that the sound effects of private rooms of different KTV companies are very different, even different private rooms of the same
2021-11-29
USB Keyboard recorderA national security department in Europe needs to record the computer operation of the staff. The software implementation method is obviously problematic, so it is very secret and
2021-11-29
Advertising printing machineIn Shanghai and other cities, advertising machines can be seen everywhere. Sometimes when you see advertisements, you can't remember the relevant contact information. I
2021-11-29
GPS timing systemGPS, the application of global positioning system in navigation, is well known, but it also has a special purpose is accurate timing. The project we undertake is for aviation obstacle
2021-11-29
