- Energy-efficient and eco-friendly design eliminates the need for batteries, allowing for seamless message sending without environmental impact. - Equipped with a Type C interface, this device can be powered using phone chargers, laptop chargers, portable power banks, or even computers. Flexible charging options ensure compatibility with various usage scenarios, both indoors and outdoors. - Supports vertical and horizontal operation with hand buttons and scanning keys. It features mechanical semi-automatic buttons for versatile manual input. Regardless of your preferred control method, this device ensures ease of use and effective training. - Compact and lightweight design makes it easy to carry. The simple circuitry suits hand button exercises, making it an ideal choice for practice on the go. Use Scenarios: 1. Perfect for students practicing coding or messaging skills, enhancing their proficiency in a hassle-free manner. 2. Ideal for outdoor activities, where you can quickly charge the device using a portable power bank while practicing. 3. An excellent tool for workshops or training sessions, providing diverse control options to cater to different learning styles.