Smart Watch Card Call Smart Reminder Bluetooth Device Color:White Battery type: cylindrical aluminum shell

Battery type: cylindrical aluminum shell

but can significantly reduce the scratch

But even dogs can′t hear all frequencies (your whistle has a nut and screw that adjust the frequency when turned)

or other special occasions

Smart Watch Card Call Smart Reminder Bluetooth Device Color:White Battery type: cylindrical aluminum shellProduct information: Applicable platform: android platform Applicable people: children, business, general public, fashion, adults, the elderly Screen size: 1. 44 Interface: USB 3. 0 Camera: 30w Body memory: 32 Screen material; 2. 5D arc capacitive touch screen Wearing method: wrist strap Compatible system: fully compatible Communication function: support Wireless distance: 5m (inclusive) 10m (inclusive) Battery capacity: 380MAH Operation mode: touch +