Retevis RA16 RA616 Helmet Walkie Talkie Touch LED 22CH 16CH FRS PRM Wireless Anti fall Helmet for Construction Site Safe

Features 1 Hidden intercom system long standby time up to 130h 2 High fidelity speakers clear sound quality 3 Touch control launch button PTT 4 Noise cancelling microphone reject noise 5 Double LED light flashlight 6 One key press emergency signal 7 Outdoor ultra high temperature operation warning 8 The helmet is lined with webbing fixed at four points rotating to adjust the diameter of the cap easy to fix with straps and comfortable 9 The helmet is made of high strength ABS engineering plastic shell which has good impact resistance and protects the head from injury 10 Built in RFID chip can be used with non contact intelligence real name attendance and other multi function applications need to purchase additional active identification equipment for supporting use 11 Optional transparent protective mask shawl windproof dustproof and fireproof need to be purchased separately Function Double bright flashlightAlarm functionV0XScanTOTSQLDual Band Frequency StandbyCompandFM RadioQuick team formationHigh temperature alarmSpecification Frequency RangeFRS RA16 PMR446 RA616 Channel number22 16Frequency Stability±2 5ppmWorking Voltage3 7V DCAntenna Impedance50ΩOperation Temperature Range 30℃ 60℃Storage Temperature Range 45℃ 85℃Battery capacity3800mAhDimensions312 x 225 x 215mmNet weight1070gTransmitter Output Power 2WCurrent≤1 4AModulation Sensitivity12mV 3KHzModulation Deviation≤5 Maximum Frequency Deviation≤5KHzRemanent Radiation≤ 36dBmModulation Mode