1. Automatic Steps Earning Device: Recommended for those who want to increase the number of walks With this phone swing device, pretend you are running, it record steps automatically. 2. Left to right swing. Imitates walking. No magnets. No more magnets interference on phone. 3. With pen holder design, can hold your pencil, pens. 4. ON/OFF switch. Can be easily turned off and on. 5. Suitable for phone width below 9cm, can be charged by USB cable, mobile power. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow minor deviation due to manual measurement. Specification: Type: Phone shaker Material: ABS plastic Power supply: USB charging/mobile power Step speed: 5000-15000 / h Applicable phone: for phone width below 9cm Size: 19x14x7cmincludes:1 x Phone shaker 1 x charging cable