Main functions: Timing control of shutter and exposure time. Support interval timer, long exposure, self timer, exposure count control and remote switch function. | With backlight LCD display, easy to set up. Half press to auto-focus, fully press to take photo. | Shooting Interval: 1 second to 99 hours 59 minutes 59 seconds in one second increments; | Shutter delay and Exposure time: 0s to 99hrs 59min 59s in one second increments. | Number of shots: 1 to 399; Double dash ( - - ) unlimited; Tips: select 1 and press the down button can set the number of shots to (unlimited). | Compatible with Canon EOS R6, EOS R, EOS RA, EOS RP, 850D, 90D, 80D, 70D, 77D, 60D, 60Da, 250D, 200D, 200DII, 100D, 800D, 760D, 750D, 700D, 650D, 600D, 550D, 500D, 450D, 400D, 1500D, 1300D, 1200D, 1100D, 1000D, 2000D, M5, M6, M6 Mark II; PowerShot SX50HS, SX60HS, SX70HS, G1X Mark III, G1X Mark II, G1X, G3X, G5X, G10, G11, G12, G15, G16; Rebel: XT, XTi, XS, XSi, T1i, T2, T2i, T3, T3i, T4, T4i, T5, T5i, T6, T6i, T7i, T8i, SL1 etc. | Compatible with Fujifilm GFX100, GFX100S, GFX50R, X-Pro3, X-T3, X-T4, X-T30, X-A7, X-E1, X100V; Olympus OM-D E-M1X, E-M1 Mark II, E‑M1 Mark III, E-M5 Mark III ; Pentax 645Z, K-1 Mark II, K100D, K110D, K200D, K-500, K100D, K20D, K10D, K-30, K-50, K-7, K-5, K-5II, K-5IIs, K-3, K-3II, K-1; *ist D, *ist DL, *ist DS, *ist DS2; Samsung GX-1L, GX-1S, GX-10, GX-20, NX100, NX11, NX10, NX5; Contax 645, N1, NX, N Digial; Sigma Sd1.