CJ220 Miniature Locator Older Children Personal 2G GPS Locator 1. GPS chip: MTK2503D 2. GSMGPRS module: MTK2503D 3. GPS sensitivity: -161dBm 4. GPS accuracy: within 5 meters 5. Vehicle charging voltage: input 12-24V, output 5V 6. Handheld charging voltage: input 110-220V, output 5V 7. Battery capacity: 3.7V 1200mAh 8. Material: ABS 9. Network: GSMGPRS 10. Network frequency band: 85090018001900Mhz 11. Weight: about 38g 12. Size: about 4.8x3.2x2 cm Features: 1. Remote listening on mobile phone, high-definition microphone, automatic noise filtering 2. All-round security guard, 24-hour real-time monitoring 3. Multiple positioning, Beidou+WIFI+GPS+LBS quadruple positioning 4. Electronic fence, enter or leave the area (set safe driving Area), the guardian will be notified 5. Support multi-platform query real-time location 6. Detailed query of driving track data within 180 days 7. Convenient USB charging interface, convenient and fast