Functions: Focus, take pictures, and control video recording (set REC as shutter release button in the camera). RC301-TPC is a Sony-compatible shutter release cable remote control. Compatible with: A7C R, ZV-E10 II / ZV-E10M2K, A6700 / Alpha 6700, A7C II / Alpha 7C II, ZV-E1. The large button supports half-press to focus and full press to capture still images. The small button is for taking photos; press and hold for continuous shooting or bulb mode. Compact and lightweight design. Replaces the camera’s built-in shutter release button. Helps reduce camera shake and extends the lifespan of the camera’s shutter button. No batteries or external power required. Plug-and-play operation. Note: Not compatible with A7C or first-generation ZV-E10 cameras. Color: Black. Material: ABS. Cable length: 30 cm. Package includes: 1 x Remote Control Cable. Other accessories shown are not included. Note: Screen settings and lighting conditions may cause slight color variation between the image and the actual product. Measurement tolerance: ±1–3 cm.