High-concerned chemical : None<br>Time to market : Jul-13<br>Gross Weight : 120g<br>Power Type : Rechargeable<br>Number of Rollers : 1 pcs<br>Hand Orientation : Right<br>Package : Yes<br>Interface Type : Bluetooth<br>Battery Included : Yes<br>Type : 2.4Ghz Wireless<br>Brand Name : Yoteen<br>Origin : Mainland China<br>Power Source : Rechargeable<br>Operation Mode : Opto-electronic<br>Number of Buttons : 4<br>Connect to the computer : 2.4G + Bluetooth<br>Model : T23F<br>Roller direction : Four-way roller<br>Wireless transmission frequency : 2.4GHz<br>Product weight : 0.075<br>interface : USB<br>photoelectric resolution : 1600dpi<br>packing list : Cowhide box packaging + English manual<br>operating distance : 10<br>Product size : 11x 6 x 2.5cm<br>Adjustable resolution : Third gear and below<br>