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

1. Uses the standard Digital Mobile Radio (DMR) Layer 2 protocol. It is compatible with other makes and models of popular TRBO Tier I and II series that use standard encryption and other DMR enabled radios. It is also compatible with any existing analog two-way radios that operate on supported UHF and VHF frequencies and can be easily ported to digital technology
2. Remotely kill/stun and activate
3. With GPS, emergency warning, VOX, TOT, (TDMA) Digital, Encryption and other functions
4. Frequency 136-174 and 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 (battery included)

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 -60 dB
4. Free time slot power: TDMA: less than or equal to 57dbm
5. hum and noise: -40 db@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 -60 dB@12.5khz
2. Intermodulation: less than or equal to 60 dB
3. Spurious response: greater than or equal to 70 dB
4. Audio response: +1 to -3db
5. Nominal audio distortion: less than 5%
6. Rated audio power: 1W