* Battery: 2pcs no. 7 (AAA) batteries can be used for power supply for radio communication, without turning on
the power supply or working independently even when the battery is exhausted.(Don't include Battery)
* Quick release switch (wearing head/helmet)
* It is recommended to match FCS V60(not come with headset set) to realize single-line dual-communication radio communication function
* Note：not include the helmet and talkie walkie and battery
