2020/6 New Released :
OTP-SP42A World first 4G GSM listening device, voice activated voice call back alarm device.
2020/5 New Released :
2020~Super Mini revolution~~~~Smallest size in the world: 38mm*38mm*26mm,
2019.11.1.New released camera detector:
2019.10.5. Micrphone audio recorder
2018.11
OTP-GL800W 1080P High Tech WiFi Glasses Video Camera
2018.6
OTP-4G-VORB 4G multi Voice recorder