1. Transmits up to 300 feet (open air), Crispy Sound, CE certified. 2. 128 selectable channels prevent outside interference & allow system expansion 3. Frequency: 433. 92MHz or 315MHz; 4. Pushbutton takes (1) A23 12 Volt Battery 5. Remote Receiver operates on 110 V or 230 V. 6. 4 tones selectable 7. Weather-proof for outdoor use 8. Wireless - Simple InstallationTrademark: MaiorChina Standard: CE Productivity: 50,000/year Unit Price/Payment: FOB Shanghai
