Our verdict, built on published evidence rather than a test bench of our own: the Revolve+ II is the speaker to buy when everyone sits around it, not in front of it. TechGearLab's 10.0 sound score, 88 dB maximum from a meter away, and 34 hours at 75% volume are the strongest lab numbers in this class, and the handle plus IP55 build make it easy to carry to the patio. The trade-offs are dated, not hidden — micro-USB charging, no EQ, Bluetooth 4.1, and deep bass that RTINGS found wanting at the limit. Check the current price on Amazon, and skip it if USB-C, app EQ, or deep bass matter more than even, room-filling sound.
— THE VERDICT · JUDGEANY EDITORSA bigger Revolve, not a new one
The SoundLink Revolve+ II arrived in early 2021 as the larger sibling of the Revolve II, and Bose changed very little besides size. TechRadar's launch coverage notes the battery moved from 16 to 17 hours and the rating moved to IP55, with the audio hardware left alone. This review compiles Bose's official specifications, published expert reviews, and owner feedback from the Amazon listing. JudgeAny does not run a test lab: every measurement cited here belongs to the outlet that published it, and the score below is our editorial judgment based on that public evidence.
Sound: even in every direction, thin at the very bottom
The hardware is a single down-firing full-range transducer, two passive radiators, and an omnidirectional acoustic deflector that spreads sound in a 360-degree field, according to Bose and SoundGuys. The speaker plays in mono on its own — stereo needs a second unit. SoundGuys, listening to Charli Adams' "Cheer Captain," heard the kick drum come through loudly while vocals, background synthesizer, and guitar stayed clear, and called the overall sound very good.
TechGearLab went further. In its lab comparison it gave the speaker a perfect 10.0 for sound quality, measured 88 dB maximum volume from a meter away, and recorded only a 1 dB loss over 30 feet, which it read as proof the 360-degree projection holds up outdoors. It also found the bass stayed powerful without muddying the highs or mids, even when pushed loud.
Here is the evidence that cuts against that praise, and it matters. RTINGS, as summarized by ReviewFinder and Neofiliac, describes a fairly well-balanced profile with excellent directivity, but finds the speaker struggles with deep low-bass, so the thump and rumble in bass-heavy tracks and action scenes fall short, with compression artifacts at maximum volume. That conflicts with TechGearLab's "clear even when loud" verdict, and the gap is probably about volume: at the levels most people use around a house or a patio, the tuning sounds full and even, while at full tilt the small driver runs out of low-end headroom. The conclusion stands for normal listening, not for bass-first buyers or anyone planning to run it flat out all evening.
Built to travel, not to swim
At 7.25 x 4.13 x 4.13 inches and 2 pounds, the Revolve+ II is a cylinder with a seamless aluminum grille, silicone bumpers top and bottom, and a woven fabric handle that folds out of the way, per Bose and TechGearLab. TechGearLab gave portability only 5.0 out of 10 in its weighted scoring: the speaker goes just about anywhere, but it does not disappear into a bag the way smaller speakers do. The handle is the difference from the smaller Revolve II, and it earns its keep on the walk to the patio.
The IP55 rating covers dust and water jets, and Bose is explicit that splashes by the pool or in the kitchen are fine, while submersion is not. SoundGuys puts it the same way: the speaker survives a splash, not a dunk. Owners on Amazon rate the speaker 4.7 out of 5 stars across more than 7,000 reviews, with praise centering on room-filling sound and portability, while the recurring complaints mention pairing hiccups and battery life falling short of the claim for some buyers. Two colors are sold: Triple Black and Luxe Silver.
Battery: the claim is 17 hours, one lab got double
Bose rates the battery at up to 17 hours on average listening volume, with a full recharge taking about 4 hours over the included micro-USB cable. SoundGuys repeats those figures and notes it had not yet run the speaker through its own updated battery test, so its review leans on Bose's claim. TechGearLab, testing at 75% of maximum volume, measured 34 hours of continuous play, nearly double the rated figure. Volume explains most of that spread: 75% is loud, but it is not maximum, and Bose's "average listening volume" is vaguer still. Either way, the battery is not the weak point here. The charging port is: micro-USB in a speaker still sold in 2026 means carrying a cable you probably retired years ago, and there is no USB-C, no wireless charging, and no power-bank output.
Connectivity and controls: old Bluetooth, useful extras
Bluetooth is version 4.1 with a claimed range of up to 30 feet, plus NFC tap-to-pair and a 3.5 mm aux input, according to Bose. SoundGuys confirms multipoint for two devices at once and memory for up to eight paired devices, so two people can trade DJ duties without re-pairing. The top panel carries power, Bluetooth, volume, multifunction, and input buttons, and the multifunction button answers calls, skips tracks, and summons the phone's voice assistant through the built-in microphone. There is no built-in assistant and no Wi-Fi: the speaker borrows Siri, Google Assistant, or Alexa from the connected phone, and SoundGuys is clear it is not a smart speaker.
Two gaps are worth knowing before buying. The Bose Connect app offers Party Mode, Stereo Mode, voice-prompt settings, and an auto-off timer, but SoundGuys notes it offers no equalizer, so the out-of-box tuning is the tuning you keep. And pairing with other Bose speakers works through Party Mode, Stereo Mode, and SimpleSync with compatible Bose soundbars and home speakers, which helps if the house already runs Bose gear and does nothing if it does not. Check the current price on Amazon before deciding: this is a premium-priced speaker from 2021, and its value case depends on how much the 360-degree sound and the long battery matter to you versus newer speakers with USB-C and app EQ.