AODELAN WTR-2 works as a timer and remote shutter release.
Besides the full functions of shutter release, it also features multiply timer functions: delay timer, long exposure timer, interval timer and as well as setting for the number of exposure; its timing setting can be accurate to 0.1 seconds.
The WTR-2 is great for time-lapse recording of blooming flowers,astrophotography, etc.

WTR-2 includes a Timer WTR-2(T) and a Receiver WTR-2(R). It works as a wireless timer and remote shutter release system with the Receiver WTR-2(R) connecting to the camera and the Timer WTR-2(T) controlling the receiver.
Also,the Timer WTR-2(T) can work as a wired system with it connecting to the camera directly.

Specifications
Batteries:
2 x AAA batteries for Timer (not included)
2 x AAA batteries for Receiver (not included)
Standby Timer: 48 Hours

Timer WTR-2(T)
Frequency: 2.4 GHz
Range: 60 meter
Working voltage: 3.0 V
Size: Approx. 130 x 46 x 22 mm (5.1 x 1.8 x 0.9 in)
Weight: Approx. 56.5g (2.0 oz) (without batteries)

Receiver WTR-2(R)
Working voltage: 3.0 V
Size: Approx. 85 x 37 x 31 mm (3.3 x 1.5 x 1.2 in)
Weight: Approx. 37.5 g (1.3 oz) (without batteries)

Compatible Cameras:
Nikon Z7, Z6, D850, D810, D800, D800e, D750 , D700, D610, D600, D500, D300s, D300, D200, Df, D7500, D7200, D7100, D7000, D90, D5600, D5500, D5300, D5200, D5100, D5000, D3300, D3200, D3100, D5, D4s, D4, D3x, D3s, D3, D2Xs, D2X, D2Hs, D2H, D2, D1X, D1H, D1;
Nikon Coolpix P1000, P7800, P7700, A;
Fujifilm: S3 Pro, S5 Pro;
Kodak: DCS-14N.