Volume Two-Way Talk Wireless Voice Intercom Doorbells USB Indoor Outdoor System For Home Security

<b>volume Two-Way Talk Wireless Voice Intercom Doorbells USB Indoor Outdoor System for Home Security</b><br/><b>Specification:</b><br/>Condition: <br>Item Type: <br>Color: As Picture Shown<br>Material: ABS PlasticThe Outdoor MachineBattery Model: 4pcs AAA Batteries for Power Supply Not IncludedWorking Temperature: -20-55 degrees Celsius Transmission Distance: Approx. 200m/218yd of Empty Place, 5-50m/16.4-164yd of Place with ObstaclesWorking Frequency: 467.6375MHZWorking Time: Four monthsWaterproof Rating: No Waterproof FunctionThe Indoor MachineVoltage Range: 5V 1A<br>Working Temperature: -20-55 degrees Celsius Transmission Distance: Approx. 200m/218yd of Empty Place, 5-50m/16.4-164yd of Place with ObstaclesWorking Frequency: 467.6375MHZWaterproof Rating: No Waterproof Function <br/><br/><b>Package List:</b><br/>1 x Indoor Machine<div>1 x Outdoor Machine</div><div>1 x Screwdriver</div><div>1 x Discription</div><div>2 x Adhesive Tape</div> <br/>

• Frequency of is in line with the national regulations, will not produce harmful electromagnetic interference.
• Battery take-in and take-out easily for outdoor machine, using 4pcs AAA batteries, and service life can up to four months, but the battery is not included.
• The indoor machine doesn't need batteries, and it is connected with USB data cable.
• Volume and ringtone changeable, the voice quality is clear and the speaker sound is .