The CA-6928 (JL IC) 5V Mini Digital Bluetooth Amplifier Board is an ultra-compact, high-efficiency audio solution perfect for portable DIY projects. At Electrapac, we recommend this module for users looking to convert old wired speakers into Bluetooth-enabled devices or for building custom portable "boomboxes."

Product Overview
The heart of this board is the JL (Jerry) AC series IC, known for its stable Bluetooth connectivity and low power consumption. Despite its small size, it integrates a Bluetooth receiver, a digital-to-analog converter, and a dual-channel power amplifier on a single slim PCB.

Key Features for Electrapac Customers

• Ultra-Miniature Design: Its tiny footprint allows it to be hidden inside almost any enclosure, from vintage radios to small plastic handheld cases.
• Efficient 5V Input: Can be powered easily by a single 18650 Lithium battery, a 5V power bank, or a standard smartphone charger.
• Minimal Noise: The JL IC provides a clean signal with very little "hiss" during idle periods compared to cheaper, unbranded alternatives.
• Seamless Pairing: Features an automatic reconnection function—once paired with your phone, it will link up instantly the next time you power it on.
• Status LED: Includes an onboard SMD LED that flashes during pairing and stays solid when connected.

Wiring & Installation Guide

To ensure the longevity of your module from www.electrapac.com, follow these wiring basics:

1. Power (5V & GND): Connect to a stable 5V source. Reverse polarity will damage the chip instantly, so double-check your (+) and (-) wires.
2. L-Out & R-Out: These are the speaker outputs. Connect the Left speaker to L+/L- and the Right speaker to R+/R-.
3. Antenna: The Bluetooth antenna is printed directly on the PCB (the "wiggly" gold line). Keep this area away from large metal objects or thick wires to ensure the best wireless range.

Ideal For:

• Building small Bluetooth desktop speakers.
• Upgrading "dumb" toy or pillow speakers.
• STEM education projects involving wireless signal transmission.
• Portable audio mods for laptops or monitors.

Why Shop at Electrapac?

We specialize in sourcing reliable IC variants like the CA-6928 to ensure your DIY projects work the first time. Visit us at www.electrapac.com for matching speakers, batteries, and charging modules.