Features: 4G LTE +3G WCDMA+2G GSM, Waterproof IP67,GPS+Beidou positioning, accuracy up to 5 mWIFI positioning, accuracy up to 30m, Web platform/ Phone App for positions checkPill reminder and Pedometer, Fall detection with alert, SOS urgent call for help, Speed dial callRing to find the device, Historical route display/Geo-fenceLow battery/ changing alert, Talking clock for real time voice tellingProduct specification:Model B: 4G-FDD:Band 1/2/4/5/7/12/13/173G-WCDMA:Band 1/2/52G-GSM:Band 2/5Model B applicable to South America and North AmericaGPS locating time:30sec with cold boot (open )29sec with warm boot (open )5sec with hot boot (open )GPS positioning accuracy:5-15m (open )WIFI positioning accuracy:15-100m(Under WIFI range)Working temperature:-20 ~ +70Working humidity:5% ~ 95% RHHost size:57.5(L) x 40(W) x 16.5(H)mmBattery:1000mAhColor: As ShownMaterial: plasticPackage Contents:1 x GPS pendant1 x Lanyard1 x User manual1 x Screw driver1 x Magnetic USB cableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.