Precise Fit: Specifically designed for thumb camera, made with aluminum alloy and precise machining for durability and structural stability MultiScenario Compatibility: Available in base, 1 / 4 " screw mount ( ZS54553E1), and clip ( ZS54553E2) versions, ideal for cycling, selfie, helmet mounts, and chest mounted Easy Access: Features a side memory card slot for easy access without disassembly, a quick release mechanism for fast attachment and detachment during Enhanced Cooling & Charging: heat dissipation design ( ZS54553) prevents overheating during extended use; select models include charging contacts for uninterrupted power supply Horizontal & Vertical Mode: Supports seamless switching between horizontal and vertical mode with 2prong interfaces, perfect for vlog and first person perspective