Wireless Intercom Doorbells Chip Strong Penetration User Friendly For Home Ho FG
Item Type: Wireless Intercom Doorbells. Wireless Distance 1000m (handicap) /20-50m (handicap). The Wireless Frequency Ranges From 410 MHZ to 490MHz. 1 x User Manual. If you do not receive our reply within 48 hours, pls.