Specifications:

• Wireless receiving distance: 100 meters (open air)
• Wireless Frequency: 433Mhz EV1527
• Standby current: 10mA
• Power Supply: AC100V-240V, battery
• Name: Wireless Alarm Siren
• Model Number: PS-AS10
• Built in lithium battery: 3.7V/500mAh
• Brand Name: PSCBT
• Alarm current: 200mA