Features: Portable Travel Friendly Morse Key: The MK05 is a lightweight hand operated device, featuring a small 3D printed ABS frame for easy carrying in backpacks or cases for Morse code practice. Adjustable Contact Feature: Customize your tapping experience with the spring screw design, allowing control of contact distance and response to game your preferred transmission speed and pressure preference. Strong ABS Construction: Made with sturdy 3D printed ABS parts, this Morse key proposals both strength and flexibility, ensuring long term use while maintaining easy portability. Stable Base Design: The workstation platform includes a textured bottom to keep the MK05 firmly in place during action, preventing unwanted movement for consistent Morse code transmission. Complete Set for Immediate Use: Includes a protective case, workstation platform, adjustment tool, 1m 3.5mm connection cable, providing all rudiments for quick setup and functionality. Specifications: Model: MK05 Component: 3D printed ABS Weight (complete set): 123grams Interfaces: 3.5mm auditory plug (cable length 1 meter) Adjustment: spring screw + hexagonal wrench for Amateur radio novice practice, outdoor portable stand (light weight, easy to carry), Package Includes: 1PC electric key 1PC desktop base 1PC plastic box 1PC hexagonal adjustment wrench 1PC 1meter 3.5 cable note: Please allow 1-2cm measuring deviation due to manual measurement. Due to the monitor difference and light effect, the actual color of the item may be slightly different from the color shown on the pictures. Thanks!