Bluetooth 4.0 Folding Wireless Mouse Arc Touch Roller Computer Silent Mouse Ergonomic Slim Laser Mini Mice For Microsoft Surface 2.4G Wireless Folding Mouse Specifications Connection mode: 2.4GUSB wireless receiver Wireless frequency: 2.4GHz frequency range Wireless range: open area is about 10 meters, office area is about 5 meters (wireless range may vary depending on the use environment) Compatibility: compatible with XP/WIN7/WiN8/wiN10/MAC Size: 131.2*55 * 14.5mm Battery: 2 AAA alkaline batteries (not included) Design features: Turn the tail of the mouse straight and turn off the power, bend and turn on the power Bluetooth-compatible 4.0 Folding Touch Mouse Parameters: Connection mode: Bluetooth-compatible 4.0 Radio frequency: 2.4GH frequency range Compatibility: The applicable system win8/win8.1/win10/ mac OS computer must have a Bluetooth module/mouse without installing plug-ins Size 131.2*55 * 14.5mm Specifications: 1. Simple and fashionable design, invisible roller, sensitive touch 2. Lightweight, portable and flattened portable design, which can be easily put into bags and pockets 3. Can yield and stretch, bend to open, flatten to close 4. Bluetooth-compatible folding touch mouse, can be connected to a computer, convenient and fast 5. Silent design, excellent office choice Package Included: 1 * Mouse/1 * Mouse, 1 * Receiver Notes: Note: Bluetooth version, XP,win7 system cannot be used