1. Battery check: Make sure the battery is installed and fully charged, and turn on normally.
2. Short-distance test: Perform a preliminary test of 10-20 meters indoors to ensure normal communication within a short distance. Perform a long-distance communication test outdoors, recording signal strength and sound quality.
3. Sound quality test: Test the clarity of sound quality at different distances and environments.
4. Multi-channel test: Test the switching and communication effects between different channels. 5. Call test, ringtone test and volume test. If you are operating children's products, toy supermarkets, welcome to follow us to get more business information.
walkie talkie 3km range
