Beats Solo 4 Wireless On-Ear Headphones
- Item Weight: 1.2 pounds
- Number of Items: 1
- Product Dimensions: 8.2 × 5.2 × 3.7 inches
- Batteries: 1 Lithium Ion batteries required.
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A well-rounded on-ear pick for anyone split between iOS and Android, with battery life and fast charging that outpace most headphones in this shape.
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ASIN: B0CZPLV566Model: MUW23LL/ACategory: On-Ear Headphones
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Overview
Beats Solo 4 is an on-ear wireless headphone with up to 50 hours of battery life and support for both wired lossless audio and wireless Spatial Audio with head tracking. It pairs with iOS and Android alike.
Beats built this generation around dual-input flexibility: it plays wireless over Bluetooth, or wired over USB-C or a 3.5mm cable for lossless sound when a wire is preferred. Spatial Audio with dynamic head tracking is an Apple-ecosystem feature, so Android owners get the standard stereo experience without that layer. Class 1 Bluetooth is the less common of the two Bluetooth power classes, which Beats says extends usable range and cuts dropouts compared to the Class 2 radios in most headphones.
- Up to 50-hour battery life
- Spatial Audio with head tracking (iOS)
- Wired lossless audio via USB-C or 3.5mm
- Class 1 Bluetooth for extended range
Who it's for
Listeners who move between an iPhone and an Android phone benefit most from the dual-pairing design. Anyone who wants an on-ear headphone light enough for a full day and a fast top-up before a battery dies mid-commute also fits.
Pros and cons
- Up to 50 hours of battery life
- Works wired or wireless, including lossless USB-C audio
- Fast Fuel gives 5 hours from a 10-minute charge
- One-touch pairing on both iOS and Android
- Spatial Audio head tracking is Apple-only
- On-ear fit, not over-ear, so isolation is lighter
Performance notes
Custom drivers and acoustic architecture aim for balanced output rather than heavy bass emphasis. Fast Fuel charging returns about 5 hours of playback from a 10-minute charge, useful for topping up between meetings rather than waiting out a full charge cycle. The flex-grip headband and angled ear cups are the fit mechanism for all-day wear.
Where it stands among on-ear headphones
- #1 most-searched brand and model of the 37 on-ear headphones lines we track (by search demand, not sales).
From the specs of the 17 on-ear headphones we list; not a test result.
Specifications
| Brand | Beats |
|---|---|
| Model | MUW23LL/A |
| Dimensions & fit | |
| Item Weight | 1.2 pounds |
| Product Dimensions | 8.2 × 5.2 × 3.7 inches |
| Other details | |
| Number of Items | 1 |
| Batteries | 1 Lithium Ion batteries required. |
| Charging Time | 2.15 hours |
| Item Model Number | MUW23LL/A |
| Units | 1 Count |
Closest rivals on specs
OneOdio A71 Wired Studio Headphones- Item Weight 1.2 vs 0.83 pounds (+45%)
Sony MDR-ZX110 Wired On-Ear Headphones- Item Weight 1.2 vs 0.57 pounds (+111%)
UKELALA U2 Kids Wired Headphones- Item Weight 1.2 vs 0.49 pounds (+145%)
Frequently asked questions
Does the Beats Solo 4 work with Android phones?
Yes, Beats built one-touch pairing for both iOS and Android, though Spatial Audio with head tracking is an iOS feature.
How fast does the Solo 4 charge?
A 10-minute Fast Fuel charge is rated for about 5 hours of playback, on top of the full 50-hour battery life.
Can the Beats Solo 4 be used wired?
Yes, it supports high-resolution lossless audio over USB-C or a standard 3.5mm cable.