Intercoms Sans Fil Pour La Maison, Distance Ultra Longue 1000m/3280ft,Communication Interphonique Bidirectionnelle Entre Chambres, 2 Pièces

Specifications:Power Supply Method: Polymer lithium batteryBattery Powered: DC5V/1AWorking Temperature: -20 ° C~55 ° CTransmission Distance: open space of about 1000m/3280ft, partition walls of 20-100m/66-328ft, floors 1-8Working Frequency: B-gear frequency 462MHz, A-gear frequency 434MHzWorking Time: Charge once for about 3 daysCharging Time: Approximately 5 hours when fully chargedMusic Ringtones: 38 ringtonesRing Volume: Level 3 adjustment (standby machine volume adjustment key)Call Sound: Level 3 adjust call size (adjust volume key during call operation)Product Quantity: 2PcsProduct Colors: Black, White (optional)Product Size: 116 * 56 * 18mm/4.6 * 2.2 * 0.7inchCharging Dock Size: 70 * 56 * 29mm/2.8 * 2.2 * 1.1inch Note:1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!2. Please allow 1-2cm measuring deviation due to manual measurement. Package List:2 * Indoor Intercom2 * Charging Dock2 * Charging Cable1 * Instructions