RETEVIS RT3S 136-174MHz + 400-480MHz 3000CH Handheld DMR Digital Two Way Radio Walkie Talkie, GPS...

1. Use the digital mobile radio (DMR) layer 2 standard protocol. It is compatible with other brands and models of popular MOTO TRBO series Tier I and II that use standard encryption and other DMR-enabled radios. It is also compatible with any existing analog two-way radios operating on supported UHF and VHF frequencies and can be easily ported to digital technology
2. Kill/stun and activate remotely
3. With GPS, emergency alert, VOX, TOT, (TDMA) digital, encryption and other functions
4. Frequency: 136-174&400-480MHz
5. Channel: 3000
6. Frequency stability: +/-1ppm
7. Working temperature: -30~+60 degrees Celsius
8. Working voltage: 7.4V DC
9. Battery capacity: 2000mAh
10. Antenna impedance: 50 ohms
11. Audio impedance: 1W @16 ohm
12. Channel spacing: 12.5KHz
13. Dimensions: 131 x 61 x 36mm
14. Weight: 258g (including battery)

Transmitter:
1. Power: high is less than or equal to 5W, low is less than or equal to 1W
2. Frequency stability: +/-1.0ppm
3. Adjacent channel power: less than or equal to -60dB
4. Free time slot power: TDMA: less than or equal to 57dBm
5. Humming and noise: -40dB@12.5KHz
6. FM modulation mode: 11K0F3E@12.5KHz
7. Modulation deviation: 2.5KHz@12.5KHz
8. Passive time slot power: -57dBm
9. Audio response: +1 to -3dB
10. Modulation error rate (bit error rate): less than or equal to 5%

Receiver:
1. Adjacent channel selectivity: less than or equal to -60dB@12.5KHz
2. Intermodulation: less than or equal to 60dB
3. Spurious response: greater than or equal to 70dB
4. Audio response: +1 to -3dB
5. Rated audio distortion: less than 5%
6. Rated audio power: 1W