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Genius Mouse DX-BlueEye ECO is the world’s first wireless mouse without batteries for PC & Mac users. No battery? Yes, the secret is the use the of the built-in capacitor (gold capacitor) that replace the battery and can be used up to 100,000 times refill. According to Genius, all we need simply refill it for 3 minutes then the mouse can be used for a full day. With Genius Mouse DX-BlueEye ECO, it means we do not need extra money to purchase external battery pack and also preserve the environment. Genius Mouse DX-BlueEye ECO is using a frequency of 2.4 GHz and can be used within a maximum distance of 15 m and have a 800/1600 dpi. it will be sold with price of $ 39.99.

MOUSE REPELLENT ELECTRONIC CIRCUIT DIAGRAM When the circuit at its close state, the IC will control the buzzer time using the resistor and capacitor. The buzzer sounds like alarm in the different frequencies.     Resistor R1 : 1.8k ohm     Resistor R2 : 1k ohm     Resistor R3 : 5.6k ohm     Resistor R4 : 480 ohm     Capacitor C1 : 2.2 nF     Polar Capacitor C2 : 0.022uF/6V     IC1 timer : NE555     Speaker SP1 : Tweeter 8 ohm     Power supply : 5V