The marbella GPS mouse receiver-gm-2103 enables you to receive GPS data on smart phone, pocket PC, notebook with wires. Gm-2103 receiver provides high position accuracy and has reliable tracking capabilities. The device can provide you an easy way to find out the correct direction you need to go. By compatible dual-channel through rs-232 or ttl, it communicates with other electronic utilities without problem. Meanwhile, it saves critical satellite data by built in backup memory, and the battery is recharging during normal operation. Moreover, water proof design makes the device can be placed on the car roof even in the raining day.