The TK 906 bike lamp is a 2G network GPS tracker with security alarm features to protect and find your bike if stolen. Attach this tracker to the frame of your bike (fits all sizes) and when moved or taken it sends an alert to your phone via the free app. Track its precise location at anytime from your phone. This product can locate and monitor any remote targets by SMS, APP and Internet. It adopts the most advanced technology of GPS and AGPS dual positioning. 3 Month standby on battery with 2 weeks constant tracking.
GPS and Location Based Service: Location Based service also named A-GPS, means tracker can be located even in an underground tunnel.
Real time tracking: Real time track your bike with the app. Location can be updated every 5 seconds with an accuracy of just 5 metres.
Historical track: Replay a years worth of routes on the app.
Monitoring and communication: Dial in and listen to surroundings (controlled via app), SMS messaging is also supported.
Postage and delivery 
Specification
Item model/part number: TK906
GPS and Location Based Service
Real time tracking
Check the history of route on platform
SOS Alarm
Power Saving Mode
Google map on mobile
Geofence and movement alert
Overspeed alert
Low Battery Alarm
Waterproof IP65Dimension: 40mm x 85mm x 28mm(1.5”*3.3”*0.7”)
Weight: 80g
Network: GSM/GPRS
Quad Band GSM: 850/900/1800/1900Mhz
GPS sensitivity: -159dBm
GPS accuracy: 5m
charging: input DC 5V-1.0A
Battery: 3.7V 1800mAh Li-ion battery
Time To First Fix: Cold status 45s
Warm status 35s
Hot status 1s
Storage Temp.: -40°C to +85°C
Operation Temp.: -20°C to +55°C
Humidity: 5%--95%
Package
1x TK906 Tracker
1x 'PAYG' SIM card
3x Frame mounts
1x USB charger lead