What Kids Learn Building Bluetooth Speakers, FM Radios, and Walkie-Talkies | CHIPS Blog
Compare CHIPS audio and radio workshops for ages 6+: Bluetooth speakers, FM radios, walkie-talkies, and karaoke builds with real signals and take-home hardware.
Audio and radio projects are effective first electronics builds because the result is immediate and personal. A student can hear the speaker power on, tune a live station, send a voice across the room, or sing through a microphone they connected.
The projects share components but highlight different systems. Choosing the right one depends on the learner's age, attention span, interest, and the time available for the workshop.
Recommended ages: Options from age 6+
Duration: About 1-2 hours, depending on the project
Concepts: Audio, wireless signals, antennas, microphones, speakers, and power
Take home: A working device built during the session
Bluetooth speaker: the shortest path from circuit to music
Students assemble the enclosure and driver, connect the Bluetooth audio module, wire power and a switch, then pair the device with a phone. The first successful song is a clear system test.
This project introduces power flow, audio output, wireless pairing, and careful physical assembly in a compact one-hour format.
FM radio: signals already moving through the room
An FM radio build makes invisible broadcast signals tangible. Students connect the receiver, antenna, speaker, tuner, and power, then scan for a station that already exists in the local environment.
The project opens useful questions about frequency, antennas, interference, signal strength, and why reception changes with location.
Walkie-talkies: two-way communication
Walkie-talkies add a microphone, speaker, push-to-talk behavior, and a second device. Students test both directions and can compare performance across distance or obstacles.
The result is especially social because two children or siblings can continue experimenting together after the workshop.
Karaoke: a larger audio system
The karaoke build combines a Bluetooth speaker, microphone, echo or reverb behavior, and lights that react to music. It takes longer because more subsystems must work together.
This is a strong fit for children motivated by performance, music, and a party-ready finished object.
Shared engineering habits
Identify input, processing, output, and power
Follow polarity and connector orientation
Test one subsystem before full assembly
Listen for symptoms that narrow the fault
Compare performance in different environments
Explain how a wireless or audio signal moves through the device
Which audio workshop is best for a first-time builder?
The one-hour Bluetooth speaker or FM radio projects are compact introductions for ages 6+. The final choice should also reflect the child's interests and fine-motor readiness.
Do walkie-talkie participants build one or two radios?
The CHIPS walkie-talkie workshop is built around assembling a working pair so participants can test two-way communication.
Can these workshops be booked for a private group?
Yes. Families, schools, libraries, clubs, and community groups can request a project, group size, date, and location through Events.