Description :  KERUI J009 433MHz Wireless LED Burglar Strobe Flash Siren Trobe Acousto-optic Fire Security Alarm     Features :  Wireless 433MHz frequency. Compact and fashionable mushroom-shape design. Smart and  adjustable volume with 8 levels (including mute). 110dB super loud siren、 4 groups of flashing light. EEPROM information protection、 information never lost to ensure information security. Wireless intelligent study coding、 maximum support 30pcs remote control and 50pcs detector. Compatible with PT1527 (150K~470K) and PT2262 normal encoding (Resistance 1.5-4.7M). Built-in Ni-Hi  rechargeable battery 3.7V\/600mAh、 Standby 8 hours above. AC\/DC、 twenty-four-hour ordinary guarding without interruption.           Specification :   Power Supply: AC100-240V Built-in battery: 3.7V \/ 600mAh Volume: Adjustable 8 levels (including mute) Static current: Less than 20mA Alarming current: Less than 200mA Frequency: 433mhz Receiving distance: 100m (open area) Sound: 110dB Sound time: 5 minutes Operation temperature: -20\u2103 to -50\u2103   Package includeds :  1 x KERUI J009 Wireless Strobe Siren 1 x English User Manual   Details pictures :