Short answer: the Bose Soundlink Flex 2nd gen on measured sound quality, the Tozo PA1 on price. The Bose Soundlink Flex 2nd gen ranks #35 of 144 medium speakers, rated 3.8/5, at $159. The Tozo PA1 ranks #55, rated 3.5/5, at $39.99, $119.01 cheaper.
What the Bose Soundlink Flex 2nd gen does well: A very portable 586g, IP67-rated speaker with a clear, well-balanced midrange that keeps voices and instruments intelligible. The tradeoff: One Flex remains mono and cannot deliver genuine low-bass rumble; RTINGS also found the elevated treble can turn hi-hats and other high-frequency detail piercing.
The case for the Tozo PA1: Tozo PA1 uses 67mm fullrange. The catch: Bass is limited by its 52Hz specification.
Buy the Bose Soundlink Flex 2nd gen when sound quality outweighs the price for you, and the Tozo PA1 when the price outweighs sound quality instead.
Battery life favors the Tozo PA1: rated for 25 hours against 12 hours for the Bose Soundlink Flex 2nd gen.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Bose Soundlink Flex 2nd gen | Tozo PA1 | |
|---|---|---|
| Price | $159.00 | $39.99 |
| Ranked | #35 of 144 in Medium Size Portable Bluetooth Speakers | #55 of 144 in Medium Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 25 hours (Manufacturer specified) |
| Built-in Microphone | Yes | - |
| EQ | Yes (3 band) | Yes |
| IP Rating | IP67 | IPX6 |
| Party Mode | Yes (Bose Party mode) | - |
| Power Input | USB-C | USB-C |
| Stereo | No | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 1.3 lbs (586 g) | 1.3 lbs (581 g) |
| Bluetooth Version | 5.3 | 5.0 |
| Dimensions | 7.9” x 3.5” x 2” (201 x 90 x 52 mm) | 8.3” x 3.6” x 2.4” (210 x 91 x 61 mm) |
| Aux Input | No | No |
| Drivers | 60mm full-range driver with passive radiators | 67mm fullrange |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive | SBC, AAC |
| Digital Aux Input | No | No |
| Strap | Yes (built-in loop) | - |
| Bass Extension (-10dB) | - | 52Hz |
| Bluetooth Latency | - | 220ms |
| Maximum SPL | - | 98dB (measured by Alan Ross Reviews) |
| Frequency Response | - | 55Hz - 18kHz (Manufacturer specified) |
| Amplifier Power | - | 20W |
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Prices on this page were last checked September 26, 2026 at 11:14 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Bose Soundlink Flex 2nd gen: $159.00 Amazon eBay
Older model: the Bose Soundlink Flex (rated 3.8/5).
Pros: A very portable 586g, IP67-rated speaker with a clear, well-balanced midrange that keeps voices and instruments intelligible. The second generation adds a Bose app with 3-band EQ, better-placed controls and stereo pairing with another Bose Soundlink Flex 2nd gen. It supports AAC and aptX Adaptive in addition to SBC, making it a stronger wireless option than most small rivals.
Cons: One Flex remains mono and cannot deliver genuine low-bass rumble; RTINGS also found the elevated treble can turn hi-hats and other high-frequency detail piercing. The claimed battery life is only 12 hours, and some owners report accelerated standby drain after firmware updates. It is expensive for its size, so the added app and codec support, not a transformational sound upgrade over the original, are the main reasons to choose it.
Full Bose Soundlink Flex 2nd gen review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, aptX Adaptive |
| Bluetooth Version | 5.3 |
| Built-in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 7.9” x 3.5” x 2” (201 x 90 x 52 mm) |
| Drivers | 60mm full-range driver with passive radiators |
| EQ | Yes (3 band) |
| IP Rating | IP67 |
| Omnidirectional | No |
| Party Mode | Yes (Bose Party mode) |
| Power Input | USB-C |
| Stereo | No |
| Strap | Yes (built-in loop) |
| TWS | Yes |
| Weight | 1.3 lbs (586 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen vs Flex More from Oluv’Sone →
- Oluv Patreon: Bose Soundlink Flex 2nd gen - sound demo
- Tô Thái Trí Hùng: Unbox & Sound Test - Bose Soundlink Flex 2
- Joy & Oluv’Sone: Bose Soundlink Flex 2nd gen & Soundcore Motion 300 sound test
- Alan Ross: Hall of Fame classic vs latest Bose tech! More from alanrossreviews →
- CEONTHEMAKING: Bose Soundlink Flex 2nd Gen VS Marshall Emberton III - What’s NEW?? More from CEONTHEMAKING →
- Alan Ross - The Anti Shill!: Small speaker, mighty sound, The Flex gen 2 shatters physics!
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Tozo PA1: $39.99 Amazon eBay
Pros: Tozo PA1 uses 67mm fullrange. Its 581 g, claimed 25 hours (Manufacturer specified) battery life, IPX6 protection, up to 98dB and mono playback make it a practical option for its intended room or portable use. Measured bass extension of 52Hz (-10dB).
Cons: Bass is limited by its 52Hz specification. There is no companion app. No EQ adjustment.
Full Tozo PA1 review and specifications →
| Amplifier Power | 20W |
|---|---|
| App | Yes |
| Aux Input | No |
| Bass Extension (-10dB) | 52Hz |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC |
| Bluetooth Latency | 220ms |
| Bluetooth Version | 5.0 |
| Digital Aux Input | No |
| Dimensions | 8.3” x 3.6” x 2.4” (210 x 91 x 61 mm) |
| Drivers | 67mm fullrange |
| EQ | Yes |
| Frequency Response | 55Hz - 18kHz (Manufacturer specified) |
| IP Rating | IPX6 |
| Maximum SPL | 98dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Power Input | USB-C |
| Stereo | No |
| TWS | Yes |
| Weight | 1.3 lbs (581 g) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: 1 million views! Best Budget Tws? Tozo Pa1 Review and sound test More from alanrossreviews →
- Alan Ross Reviews: Tribit Stormbox Flow has deeper bass than the Bose Flex but………..
- Jay’s Straight Up Reviews & More: On A Ledge 🪟 Soundcore Motion 300 vs Tozo PA1 ⚒ Battle of the Budget Handheld Bluetooth Speakers More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Newly Released! Skullcandy Terrain XL 🦨 Quick Overview & Sound Comparison with JBL Flip 6 & Tozo PA1
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