2,4 g opto-elektronisch opladen Vierde generatie 6D ergonomische verticale toetsenbordmuis

Choose high-quality electronic products Not only short-term returns, but also a long-term investment Every time I work in front of the computer, there are radiation, shoulder pain, and the red and black spot on my wrist. I really don't want to see that special black spot on my wrist. Fortunately, I don't usually pay attention to it below. Just think of a girl's jade hand that is so unbearable and extremely ugly. Including the usual casual swinging of my arms, the vertical orientation of my wrist while writing, I thought to myself, maybe I really need to change my mouse. Thinking about it this way, I don't care about anything and just use it. Now that I'm slowly adapting, sometimes I realize I can't be too stingy with myself. Due to its structural form, existing mice are prone to causing damage to the wrist, elbow, and shoulder joints for users. The reason is that the design of the mouse is unreasonable. However, in reality, when using a traditional mouse (Figure 1), the middle finger is in an extended state, while the buttons use the fingertip joint instead of the interdigital joint. When using the fingertip joint, as the force arm lengthens, the contraction force of the corresponding flexor muscle group needs to be increased several times. Moreover, to maintain finger extension, the extensor muscle group cannot rest and remains in a semi spastic state for a long time. And the wrist and forearm remain in a fixed position for a long time, and rotate 90 degrees compared to the natural state of the arm, resulting in muscle soreness and numbness in the hands and forearm (the abdomens of the extensor and flexor muscles are located in the forearm). Serious violation of human biomechanics Special Tip #: This product is a category product, and you need to label and code it yourself later Buyers need to know their business partners. Please note that bulk orders cannot be returned in bulk. If there are any issues with the products, they can be replaced or covered by warranty 1. Our products come with a one-year warranty and a three-month warranty for non-human quality issues; 2. When repairing, please attach a note with the problem, buyer's account name, and contact information written on it; Convenient for us to provide you with fast and good service. (Freight is the responsibility of the consumer) (Note: Please inspect the goods before signing for delivery. If the product is damaged due to water ingress or malicious damage, it can be disassembled and reassembled on its own. If it is damaged by others, it will not be covered by warranty or return or exchange services.)