Descriptions: It can be used by the seniors,patients, the disabled, kids, firefighters, pets,vehicles and can be applied in mountaineering, outdoor tour, outdoor duty, military training, etc. Model:HP501 Main functions 1. Real time tracking 2. SMS/GPRS Tracking: Capable of text message tracking (SMS) or internet tracking (GPRS) 3. Listern in the tracker 4. Emergency button for help 5. It can store 3 phone numbers 6. Low voltage alarm 7. GPRS blind area compensation 8. Set electronic fence 9. Open and close e-fence function 10. Dual-channel transmission ------------------ Hope Electronic Technology Co.,Ltd. ADD:A201,Nanxing Garden,Nancun Town,Panyu District,Guangzhou 511442,China TEL:0086 20 34121927,84564111 Mobile:0086 13265966536 FAX:0086 20 84564222 E-mail:hptracking@hotmail.com www.hptracking.com/en