1-Can I listen to my child on the farm without letting him know?
Yes. Set to the same frequency, different sub-audio. Can't talk, but when the child talks, you can hear it when you press the monitor button.
2-Which frequency programming line does RT48 use?
J9131P,can click to buy
3-How long does it take to fully charge RT48, and how long is the standby time?
RT48 battery capacity: 1200mAh charger output current: 400mAh.
Charging about 3-4 hours, use about 8 hours, standby about 48 hours
4-What is the scanning mode of RT48?
RT48 is carrier scanning mode
Frequency Range | FRS |
Channel Number | 16 |
Output power | 2W/0.5W |
Working voltage | 3.7V DC |
Battery capacity | 1200mAh(Li-ion) |
Dimension(with battery) | 240x65x38mm |
Weight(With battery) | 280g |
Audio distortion | <5% |
Frequency stability | ±2.5ppm |
Max frequency deviation | ≤5KHz/≤2.5KHz |
Spurious emission | ≤7uW |
Modulation mode | 16KΦF3E/11KΦF3E |
Reference sensibility | ≤0.25uV/≤0.3uV |
Squelch on sensibility | ≤0.2uV/≤0.5uV |
Adjacent channel selectivity | ≥65dB |
Spurious response | ≥55dB |
International | ≥60dB |
Current | ≤1.3A |
Retevis RT48 FRS License-free IP67 Waterproof two way radio
1, The Perfect-Waterproof radio With a rugged, fully waterproof design
2, IP67 Waterproof: RT48/RT648 has the IP67 Waterproof standard, withstands constant submersion of up to 1m for 30 minutes.
3, 16 Channels Each with 121 Privacy Codes, totaling 1,936 combinations, easy to find an available channel.
4, License-free: No need to program the frequency, you can communicate with other FRS/GMRS radios regardless of brand by being on the same channel and privacy code.
IP67 Waterproof
Monitor
Scan
Compand
VOX
VOX Delay
Alarm
Squelch level
Time-out Timer
CTCSS&DCS
Battery save Mode
Battery Voltage Prompt
Busy Channel Lockout
High/ /Low output Power
Frequency hop
Beep
1 x RT48 License-free Walkie Talkie
1 x Battery
1 xUSB Charger
1 x Belt Clip
1 x Hand Strap
1 x User Manual
Excellent quality and range. We are currently using it in a 250k sq ft warehouse with no issues.
We live on a mountain with no cell service. When my kiddos ride bikes in the neighborhood or go into the woods they carry these so we can communicate. Works well even with all the hills and valleys. They are sturdy and durable. I wish they came with a neck strap though.
We use these to help my elderly mom stay connected throughout the house and on our one acre of land. They'll even tell you to charge your battery when it's low. We turned on a few on the charging base and they have been working without issue. The only thing is it would be better if the knob was more damped.
If you do not like the product you can return it within 15 days - no questions asked. This excludes bodysuits, swimwear and clearance sale items. We have an easy and hassle free return policy. Please look at our Delivery & Returns section for further information.