The Bose SoundLink Flex Bluetooth Speaker (2nd Gen) is on sale at Amazon for $129.00, a significant 13% discount from its normal price of $149.00. The speaker is small enough to hold and use, while offering high-quality audio. It can connect to multiple devices simultaneously using Multipoint Technology and can be waterproof and dustproof. The battery life is up to 12 hours and can last for outdoor activities without needing to plug it in. Additional features such as adjusting EQ, showing battery life, managing Bluetooth connections, and customizing shortcuts via the Bose App are useful additions for a small speaker.