Features: Base station positioning Card-operable two-way call Phone book (APP address book 10 is a single call, phone 10 is a two-way call) SOS emergency alarm, remote shutdown, safe area, low battery alarm, voice monitoring, historical track, voice intercom, love reward, watch alarm Parameters: Card specifications: Standard Micro SIM card (supports mobile Unicom card, to open 2G network data traffic) Card specifications: install a standard micro SIM card (micro SIM card do not including) Chip Type: RDA8955 Processor frequency: single core 312MHz, architecture: SOC Processor RAM (random access memory): 32MB ROM Flash (Read Only Memory): 32MB Extended memory is not supported SIM card slot type Side card (micro SIM card do not including) Communication Operation Platform: Mobile / Unicom 2G Screen display: 1.44 inches, resolution 128*128 Touch TP: Cap. Touch panel (with return cruise touch) Battery: 3.8V 400mah long-lasting battery life, durable Camera: 8W, front middle raised camera Waterproof rating: IP67 structure waterproof Magnetic charging Hands: stainless steel hands Ø1.5*16mm Button: Right single button SOS (switch button) Small flashlight: small LED light on the right Antenna: GSM built-in attached antenna (band: 850, 900, 1800, 1900) Language: Support up to 10 languages including Chinese and English and so on Quick calculation game: optional Background: Security Guardian APP& 65306;SeTracker/SeTracker2 Support micro chat Positioning: LBS base station positioning, Beidou positioning 100-1000 meters(no GPS positioning) Features: remote shutdown, remote camera, track playback, electronic fence, alarm settings, voice monitoring, SMS reminder, do not disturb time, find equipment, love rewards, remote device phone book, family member management, SOS help phone settings Radiation: lower than mobile phones, international standards, no impact on the human body Product material: ABS Surface technology: plastic material Strap material: single and double color strap optional Specifications: Cleverly designed so that children have more fun and parents can monitor their children without notice.SOS Call,Remote monitoring Voice micro chat Low radiation Eye protection color screen LBS base station positioning, Beidou positioning (no GPS positioning) Package Included: 1*Smart Watch 1*USB Cable 1*User Manual