Amazon has the ERKEI SEHN Portable Bluetooth Speaker with IPX7 Waterproof, Colorful Flashing Lights, 25W Super Bass, and 24H Playtime on sale for just $39.98 + Free Shipping. This has 4.5 out of 5 rating with over 5,900 reviews on Amazon.

Experience powerful and balanced sound with minimal distortion through 2 drivers and our advanced technology in this wireless Bluetooth speaker. Enjoy room-filling 25W sound with rich bass, clear midranges, and crisp highs. Link two speakers via Bluetooth for synchronized music playback, doubled volume, and immersive stereo sound, making it ideal for gaming, music, and movies.

Designed to withstand the elements, this speaker boasts an IPX7 waterproof rating, safeguarding it against rain, spills, and even brief water submersion. Its rugged triangular prism shape enhances durability and portability, making it perfect for indoor and outdoor events like house parties, pool gatherings, hiking, biking, and more.

Benefit from Bluetooth 5.3, granting a remarkable wireless range of up to 100 feet from your device. This portable speaker ensures up to 24 hours of playtime per charge, complemented by customizable multi-color LED lights that sync with the music for a captivating visual experience. Adjust the lights to conserve battery life as needed.

Inject life into your parties with vibrant, flashing LED lights that pulse in time with your tunes. A simple press of the "Light Button" triggers the dynamic light show, amplifying the party atmosphere. This package includes the waterproof Bluetooth speaker, a Type-C charging cable, a quick start guide, and lifetime technical support. The built-in microphone enables hands-free calls, while AUX jack connectivity offers versatile music streaming options. With crystal clear sound and dazzling lights, these Bluetooth speakers make excellent gifts for everyone.