Features: 1.Clear call, precise positioning, long battery life, ultra?thin body. 2.Two?way clear and stable call.The sound is louder and can be heard in noisy environments. 3.Simpler operation and clearer voice. 4.Precise positioning and real?time viewing, fully meet the positioning needs of life and emergency situations. Prevent children from losing. 5.Longer standby time, eliminating the trouble of charging every day. specification:Suitable for the crowd: children Screen size: 1.44 Interface: USB 2.0 Camera: 8W Body memory: 32MB Screen material: Acrylic Wearing method: wrist strap Compatible system: for iOS platform Communication function: support Menu language: English Additional waterproof, health monitoring, information push, motion tracking, smart reminder, mobile positioning, step counting, tracking / alarm Wireless distance: networked without Bluetooth Battery capacity: 400 mAh Mode of operation: touch + button Product size: 35*42*15mm Screen resolution: 128*128 Wristband material: silicone strap PackageList:1 x Waterproof Phone Watch 1 x USB Cable Data Cable 1 x Screwdriver 1 x User Manual