The Bose Soundlink Max is usually $399, but has been on steep discount this week at Amazon , Best Buy , and directly from Bose for $279. This Bluetooth speaker has a big and bold sound, with a wide soundstage that impressed us in our review. It’s great for the outdoors thanks to its IP67 rating, meaning splashes and sand won’t affect it. The built-in battery lasts up to 20 hours on a single charge, and the speaker can top up your other devices as needed from its USB-C port. The SoundLink Max