Features: Support: Real-time GPS+AGPS+Wifi+LBS Positioning, SOS, Voice Monitoring, Call Family Numbers, Pedometer, Geo-fence Alarm Reminder, historical track, Alarm clock, Class mode, Power save mode. Global Four Satellite: Five Multiple Accurate Positioning-GPS, AGPS, BDS, WIFI, LBS. Geo-Fence, Out of Range Alarm: Designate an area on the map by setting the device as the center point and the alarm will be triggered off immediately once the user of the device goes into or out of this area. Adjustable Straps: From 10 inches to 15 inches, suitable for small to large medium sized pets, weight from 7-80lbs. Track: Connect to your pet's collar track their location and activity right from your phone. Make and Receive Phone Call. Durable&Waterproof: Attaches to any collar or harness up to 0.6 inch wide and designed to go any-where with your pet, even swimming. Mini and easy to carry, easy to install. Built in horn, vibration alarm, low power alarm. Specifications: Model: G12PPCBA:ZX303 Chip: MTK2503/MTK3333/MTK5931 Size: 53.3*29*23mm Battery: 500mAh SOS for help: Stand by WIFI Positioning: Support TF: Support Max 32GB super long voice recording Package size: 10*5*3cm Package weight: 100g Package list: 1 x GPS Tracker 1 x USB Cable 1 x User manual 1 x Leather strap 1 x Exquisite color box