RF-V20 gps power bank is also a gps tracker with gps positioning , door magnet alarm , vibration alarm ,  voice alarm , flashing , power bank , long life battery  seven in one .

• GSM quad band network, all global universal.
• Tracking Via website/IOS APP/Android APP/Wechat/SMS
• Trajectory playback /Geo-fence
• Magnetic sensor/vibration sensor/sound sensor, three types of anti-theft alarm
• Power bank/LED flashlight
• One month standby time
• High frequency buzzer alarm
• Voice monitor
• Low battery alarm
• SIM card changing alarm