1: The product is small, light and thin: the body size is about: 60*49*31MM; the net weight is about 65 grams; OPP bag packaging. 2: With USB interface, with 1 LED lamp bead. The standard USB output port can be charged with the help of the USB data cable of the mobile phone/digital device itself. The LD light can be used for both indication and emergency lighting. 3; Shake while charging, the output voltage is 5V, and the current is 0-400MA. 4; Clockwise rotation is the charging direction, but it doesn't matter if it is unclear, which direction the light turns on is right. 5: Please turn slowly for the first few times to make the shaft run in (similar to the principle of running in a car). cause damage to the baby. (Note that there will be noise when shaking, the teacher can hear when shaking this product in class). 7: Shake while charging, there is no battery inside. There is only a motor, so this product cannot be charged and stored by an external power supply (only output, no input). 8: Wide range of use, devices that can be powered by USB, such as 80% mobile phones, IP3. IP4, USB lights, USB fans, moon lights, radios, some power banks and other low-power products are suitable, but it is suitable for smart high-end products. Mobile phones (such as Apple, some fast-charging mobile phones, and tablets) do not work well, but they are more effective for older phones. (This product only has a small output current and will not charge or damage any device). 9: Gently hand shake, easy to charge. For you on the journey, commuting to get off work, and in various emergency situations, the mobile phone will not be out of power to delay your major events and make you lonely and bored. 10. Elderly machine test: Hand crank for 2 minutes, can make calls for 5-10 minutes or stand by for 3-8 hours. 11: Smartphone test: Huawei P20PRD- part in a power-off state that is completely dead, hand cranked at 150 rpm, turned for 45 minutes, and charged with money (equivalent to 170LAH). 12: Don't position it as a power bank, and don't think that with this little hand crank, you can charge it without paying electricity bills. It's like buying a life rope, but you can't hold it and skip the rope every day! 13. Gently shake it, easy to charge. For you on the journey, commuting to get off work, and in various emergency situations, the mobile phone will not be out of power to delay your major events and make you lonely and bored. 14. Only in emergency, only in emergency, only in emergency. For example, if you don't bring paper in the toilet, and your mobile phone (non-Apple, some high-end models such as fast-charging mobile phones) has no power, you can shake this product hundreds of times to let the phone If you have a little electricity, you can call a friend outside to send you a photo.... Another example is that you lost your mobile phone during an outing and have no electricity. You can shake this product to make your mobile phone have some electricity to make a call for help...... And I heard that in the Shake this product in the dark and windy night The noise it makes can scare ghosts away... 15: Please don't ask how long it takes to charge the shake, this is without data, and it is unrealistic to expect to fully charge the phone, it will exhaust people first... 16: Occasionally play this product, it is full of fun, emergency, entertainment, this is the meaning of its existence. "all Products From Us Have Undergone Strict Quality Checks. if There Is Any Quality Problem Or You Are Not Satisfied With The Product contact Us. we Will Give You The Best Solution."