Outddor rechargeable backup battery support wireless intercom communication

Specifiation:

1.Battery: polymer lithium-ion batteries 3000mAh 3.7v
2.Input: DC 5V / 1A
3.Output: DC 5V / 1A
4. Intercom Distance: transmit power 1w, open communication distance> = 2Km
5. intercom continuous talk time: 650mA / 4V, 4.5 hours working time
6. Intercom continuous reception time; 40mA, operating time 75 hours
7. Intercom Channel: GMRS / FRS-22.PMR-8, CN-20, TW-14
8. Bluetooth headset: connected to market generic Bluetooth headset 

9.Compatible with iphone 6/6s