RAPOO M500 Multi-Mode, Silent, Bluetooth, 2.4Ghz, 3 device Wireless Mouse_x000D_
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Switch between Bluetooth 3.0, 4.0 and 2.4G_x000D_
The smart switch between Bluetooth 3.0, 4.0 and 2.4G ensures stable wireless transmission. You can still use your mouse regardless of USB port shortage or the loss of receiver._x000D_
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Smart switch between multiple devices_x000D_
Automatically pairs the working device. It simultaneously connects to up to 3 devices, and easily switches between them. It simplifies complicated cross-platform maneuvers and meets multi-tasking requirements._x000D_
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Precision on nearly every surface_x000D_
The high-performance laser engine enables you to use mouse on virtually any surface. Enjoy a high-speed response and unrivaled accuracy._x000D_
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Fully adjustable DPI sensor_x000D_
Precise down to the last pixel: with the adjustable DPI sensor, accuracy is no longer left to chance. Adjustable from 600 DPI to 1600 DPI, you can adapt it to match your preference._x000D_
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12-month battery life_x000D_
With Rapoo’s latest energy saving technology and power switch, you can use your mouse without power interruption for up to 12 months._x000D_
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Silent design_x000D_
This is a wireless noiseless mouse,help you create a quiet working environment._x000D_
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Link:http://www.rapoo.com/product/437