describe
Frequency measurement function, allowing for easy replication of frequencies from other devices at any time
1.6 inch screen, flashlight lighting function, FM
The USB charging function allows for direct charging of two radios using a USB charging cable.

feature
1. Frequency range: 144-146MHz (RX/TX) 430-440MHz (RX/TX)
2. Dual frequency, dual display, dual standby
3. High, medium, and low power switching to meet the electricity needs of users at different distances, making it more energyefficient and energysaving
4. Up to 128 storage channels for programming frequencies and various other data
5. Multiple display methods such as channel number, frequency, channel frequency, and channel name.
6. CTCSS/DCS, DTMF signaling, rejecting redundant calls from other stations
7. Eliminate tail sounds to avoid speaker impact noise after the call ends
8. VOX voice control transmission, no need to press PTT key to make normal calls
9. DTMF emergency alarm, ANI recognition and other functions
10. DTMF, CTCSS (60.0-259.9 Hz), DCS signaling encoding and decoding functions
11. 8segment frequency selection (2.5K, 5.0K, 6.25K, 10.0K, 12.5K, 20.0K, 25.0K, 50.0K)
12. Automatic powersaving function, extending battery life
13. SOS emergency alarm function
14. Computer programming functions
15. Wide/Narrow Band (25KHz/12.5KHz) Selection Function
16. Digital FM radio (receiving 65-108MHz)
17. Select keyboard numbers directly from the menu item, and the transmission and reception frequencies can be manually entered
18. Special CTCSS/DCS (Frequency Hopping Function)

Total frequency range 144-146MHz (RX/TX) 430-440MHz (RX/TX)
Channel 128
Channel spacing 25/12.5kHz
Input voltage 7.4 VDC
Battery (standard configuration) 1800mAH (lithiumion)
Battery life
(5-5-90, high-power transmission) Approximately 14 hours
Standby current ≤ 65mA
Receiving ≤ 450 mA
Emission ≤ 1.8 A @ high power, 850 mA @ low power
Frequency stability ± 2.5ppm
Working temperature -20 ℃ to+60 ℃
Antenna impedance 50 Ω
Walkie talkie size
(with battery, without antenna) 121 × 61 × 33mm
Walkie talkie weight
(including antenna and battery) 223g
TRANSMIT PART transmission output power 5W/3W/1W
Modulation 16K0F3E@25KHz , 11K0F3E@12.5KHz
Stray emission -36dBm 1GHz, -30dBm 1GHz
FM signaltonoise ratio 45dB@25KHz 40dB @ 12.5KHz
Audio distortion ≤ 5%
Modulation limit ± 5.0 KHz@25 KHz,±2.5 KHz@12.5 KHz
Adjacent channel power 70dB @ 25KHz, 60dB @ 12.5KHz
(300-3000Hz) Audio response+1-3dB
Receiving part receiving sensitivity 0.25 μ V (12dB SINAD)
Neighborhood selectivity ≥ 60dB@25KHz , ≥ 55dB@12.5KHz
Intermodulation immunity ≥ 60dB@25KHz , ≥ 55dB@12.5KHz
Conducted stray emission ≤ -57dB@25KHz , ≤ -57dB@12.5KHz
FM signaltonoise ratio ≥ 45dB@25KHz , ≥ 40dB @ 12.5KHz
Audio output power 1W @ 16ohms
Audio distortion ≤ 5%
Audio response (300-3000Hz)+1 to -3dB

The package includes:
1 x RA685 bidirectional radio
1 x battery
1 x antenna
1 x manual
1 x USB charger