4 AA Battery Holder Waterproof Ultrasonic Sensor insert your second battery into

insert your second battery into the right charging slot for dual-channel operation

True Stereo Output: Dual-channel amplification drives two separate speakers for genuine left/right stereo sound separation

Compact & Portable: Lightweight and flexible design makes it easy to carry in laptop bags

low resistance in bright light - making it ideal for automatic lighting systems

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4 AA Battery Holder Waterproof Ultrasonic Sensor insert your second battery into```html 4 AA Battery Holder Reliable 4 AA battery holder for powering your electronics projects with a convenient 6V supply. Designed for secure battery retention and easy integration into DIY circuits, robotics, and portable devices. Available at The Engineer Store, Bengaluru with fast shipping and full support. Specifications Type Battery Holder Enclosure Battery Compatibility 4 x AA (1. 5V each) Configuration Series Connection Total Output Voltage