Details Images Size 52*31*11mm Applicable system IOS 7.0 or above, android 4.4 color white,pink,blue,green,black Working distance about 75 feet (accessibility) FAQ 1. Are you a Factory or trading company? We are a factory with export license. 2. What's your sample time? We can offer our existing samples at once. Freight prepaid according to actual express fee. 3. What's your Mass production? 15 days after samples approval after order is confirmed to us. 4. How to control quality of Mass? We have our own QC team, every step of mass product will be inspected in time. 5. How fast will you quote to clients? Quotation will be sent you by email within 12 hours. We have professional Customer Service Department. 6. How long will you guarantee the mass quality? We will be responsible for our mass even the mass are in your warehouse. We trust our quality. Almost more than 95% clients cooperated with us for long time from 1st order.