1) Showing storing channel / storing frequency

2) Humanism design

3) Voice annunciation volume

4) LCD apheliotropic lights of showing screen? facile operation in dark

5) Low battery warning

6) Electricity sparing functions? prolong using time

**Specification:

1) Frequency: 136-174MHz / 400-470MHz

2) RF output power: <=3W

3) Wireless Distance: 3-5KM

4) Channel: 99

5) Audio distortion: <=10%

6) Frequency stability: 3ppm

7) Maximum deviation: <=5KHz

8) Respond radiation: 60db

9) Adjacent channel power: 60db

10) RF sensitivity: 0.20uV

11) Adjacent channel selectivity: 60db

12) Spurious response: 60db

13) Emission current: <=800mA

14) Rated voltage: DC 6.0V

16) Battery: 6.0V/800mAh
Specification:
Package Weight
One Package Weight 1.70kgs / 3.75lb
Qty per Carton 8
Carton Weight 10.70kgs / 23.59lb
Carton Size 28cm * 36cm * 54cm / 11.02inch * 14.17inch * 21.26inch