A "walkie-talkie" is a portable, handheld communication device that allows people to talk to each other over short distances using radio waves. It's a type of two-way radio that's commonly used for instant communication among individuals or groups who are relatively close to each other.

Walkie-talkies consist of a speaker, microphone, and transmitter in one unit. When you speak into the microphone, your voice is converted into radio signals and transmitted wirelessly to another walkie-talkie. The receiving walkie-talkie then converts the radio signals back into audio, allowing the recipient to hear what was said.

Specifications:
Waterproof Grade IP68
Dimensions: 121.1*61.5*30.6mm
Net Weight: 238g (Including battery)
Shell Material: PC+TPU

Band
2G: GSM850/900/1800/1900MHz
3G: WCDMA850/900/2100MHz; TD-SCDMA B34/B39; CDMA: BC0
4G: FDD-LTE B1/B3/B5/B7/B8/B20 ; TDD-LTE B38/B40
(SIM card Single micro SIM single standby)
OS: Android 8.1 Oreo
CPU: MT6739 Cortex A53 quad core, 1.5GHz; GPU: PowerVR Rogue GE8100
RAM: 1GB RAM DDR3
ROM: 8GB ROM, support TF card up to 64GB maximally
Screen: 2.4 inch HD IPS capacitive touch screen, 432*240px, 120dpi
Phonebook: 1000
Message: SMS/MMS
Input: Handwrite/Keypad
LED: indicator RGB
Speaker: Φ36/8Ω, 2W loudspeaker
Earphone Port M6 standard interface (support external camera)
Data transfer: Micro USB/BT
Mobile internet: WAP/WiFi
Camera: Double cameras, 2.0MP front camera, 5.0MP AF back camera with flashlight
FM Radio: Yes, earphone needed
WiFi: IEEE802.11 a/b/g/n/ac, support 2.4GHz/5GHz dual band wifi
(GPS also support A-GPS/BDS/GLONASS)
NFC: NXP553
SOS Button: Customizable SOS button
POC: Yes, by 3rd party apps like zello etc.
BT Version: V4.2
Sensor: Gyro sensor
Battery Removable: 4000mAh Li-ion polymer battery
Other Features: Email, wallpapers, wifi hotspot, E-compass, flashlight, play store, OTG etc

Languages
English, Bahasa Indonesia, Bahasa Melayu, Cestina, Dansk, Deutsch, Eesti, Espanol,
Filipino, French, Hrvatski, Isizulu, Kiswahili, Italiano, Latviesu, Lietuviu, Magyar,
Nederlands, Norsk, Polish, Portuguese, Romana, Rumantsch, Slovencina, Slovenscina,
Suomi, Svenska, Vietnamese, Turkish, Greek, Bulgarian, Russian, Ukrainian, Urdu, Hebrew,
Arabic, Persian, Thai, Khmer, Hindi, Japanese, Korean, Simplified/Traditional Chinese

Accessories
1 x 4000mAh battery
1 x USB cable
1 x USB charger
1 x Belt clip
1 x User manual
Waterproof Grade IP68

Advantages:
No Cellular Coverage
Walkie-talkies use radio waves for communication, so they don't rely on cellular networks. This makes them suitable for remote areas or places with weak or no cellular signal.

Group Communication
Walkie-talkies allow for group communication, often on a specific channel. This is useful in activities like hiking, camping, construction sites, event management, and security operations where multiple team members need to stay in touch.

Real-Time Communication
Unlike texting or waiting for a call to connect, walkie-talkies offer instant voice communication, making them suitable for urgent situations.

Durability
Walkie-talkies are designed to be rugged and durable, making them suitable for outdoor activities and industrial use.