• Device Dimension:-cm / Weight -g
• External power supply: DC5V or DC12V;
• Built-in battery: Rechargeable • Material : ABS Plastic with Silicone button
• Device Frequency : 433MHz
• Receive Distance : 0-100Meters in open area
• Transmit Distance : 0-500Meters in open area
• Working temperature: -20 ℃ -55 ℃