1pair Heavy-Duty IP67 Waterproof Dual PTT Outdoor Shock-Resistant Walkie Talkies, RETEVIS RB48 FRS, RETEVIS RB648 PMR446

1pair Heavy-Duty IP67 Waterproof Dual PTT Outdoor Shock-Resistant Walkie Talkies, RETEVIS RB48 FRS, RETEVIS RB648 PMR4461. Frequency range: FRS PMR 446 2. Battery capacity: 2000mAh 3. Operating voltage: DC 3. 7V 4. Antenna impedance: 50 ohms 5. Standby time: 48 hours 6. Operating time: 12 hours 7. Operating temperature: 20 to 60 degrees Celsius 8. Charging cradle: input: 5V 1A, output: 5V 480mA 9. Theoretical line of sight communication range: about 10km 10. Urban communication range: about 2. 4km 11. Size: about 18 x 6 x 3. 3cm (with antenna) Receiver section: 1.

1. Frequency range: FRS/PMR 446
2. Battery capacity: 2000mAh
3. Operating voltage: DC 3.7V
4. Antenna impedance: 50 ohms
5. Standby time: 48 hours
6. Operating time: 12 hours
7. Operating temperature: -20 to 60 degrees Celsius
8. Charging cradle: input: 5V/1A, output: 5V/480mA
9. Theoretical line-of-sight communication range: about 10km
10. Urban communication range: about 2.4km
11. Size: about 18 x 6 x 3.3cm (with antenna)

Receiver section:
1. Receiver sensitivity: 0.25 μV / -119 dBm (20 dB SINAD)
2. Adjacent channel selectivity: ≥ 65 dB
3. Modulation reception bandwidth: ≤ 16 kHz
4. Audio output: ≥ 300 mW
5. Intermodulation: ≥ 55 dB
6. Receive current: ≤ 410 mA
7. Audio distortion: ≤ 3%
8. Standby current: ≤ 60 mA

Transmitter section:
1. Transmit power: FRS: High 2W / Low 0.5W, PMR: 0.5W
2. Transmit current: ≤ 1.5A
3. Maximum frequency deviation: +/-5kHz
4. Adjacent channel power: 60dBm at 12.5kHz
5. Modulation distortion: less than 5%
6. Spurious emissions: ≤ 7.5 μW
7. Modulation scheme: 12.5 kHz 11K0F3E
8. Tuning noise: less than -40 dB
9. Modulation sensitivity: 8-12 mV
10. Frequency stability: +/-2.5 ppm

Features:
1. TPE+PC dual-color construction, durable and drop-resistant design
2. IP67 waterproof
3. Backlit LCD display
4. 22 channels (16 European frequencies)
5. 121 sub-tones
6. Busy lock
7. Headset jack
8. 10 selectable call tones
9. Call end tone
10. Compression/expansion function
11. Battery level indicator
12. Scan function
13. Keypad lock
14. Voice announcement
15. Power-saving mode
16. Low battery alert
17. Key tone on/off
18. TOT (Time-Out Transmit)
19. Vibration alert for incoming calls

Package list:
1. Walkie-talkies x 2
2. Desktop charger (dual charging cradle) x 1
3. Charging cable x 1
4. Reinforced belt clips x 2
5. Lanyards x 2
6. User manual x 1