The Beats Solo 4 Slate Blue is the fourth-generation Beats Solo on-ear headphone (model MUW43) in a muted grey-blue that looks smart with work clothes and travel gear. Beats rates it at up to 50 hours of listening on a single charge, and a 10-minute Fast Fuel charge gives up to 5 hours. It plays over Class 1 Bluetooth 5.3, over USB-C with lossless audio, or over a 3.5 mm cable that needs no battery at all. It weighs 217 g, folds into the included case, and works with both iPhone and Android.
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Slate Blue for the commute and the office
Slate Blue is a calm, desaturated blue with brushed metal hinges, more grown-up than the bright colours in the Solo 4 range. It sits comfortably with navy, grey and denim, and it does not draw attention on a train or in an open-plan office the way a loud colour would. The darker tone hides small marks better than Cloud Pink, which suits headphones that live in a work bag every day. A soft, dry cloth on the cushions and headband keeps them clean. For anyone who wants something other than black without making a statement, the Beats Solo 4 Slate Blue is the quiet choice.
50 hours and Fast Fuel for long weeks
Beats rates the Beats Solo 4 Slate Blue at up to 50 hours of listening on one charge, so a daily commute of an hour or two each way runs for well over a week before it needs a cable. When the battery is low, Fast Fuel gives up to 5 hours of playback from a 10-minute charge, enough for a working day. Charging is over USB-C with the included USB-C to USB-C cable; the power adapter is sold separately. Real battery life depends on volume and use.
Three ways to listen, including flights
Most of the time you will use Bluetooth: Class 1 Bluetooth 5.3, which Beats says gives extended range and fewer dropouts. Plug in the USB-C cable and the built-in DAC plays lossless audio from a phone or laptop. The included 3.5 mm analogue cable is the one for in-flight entertainment systems and older devices, and when listening this way Beats says zero battery power is required. That makes the Beats Solo 4 Slate Blue useful on long-haul flights even if you forget to charge it.
Sound, Spatial Audio and calls
Inside are custom-built 40 mm transducers that Beats says minimise electronic artifacts, latency and distortion. Personalized Spatial Audio with dynamic head tracking keeps films and supported music anchored around you as you turn your head. For calls, multiple digital beam-forming microphones work with a voice-targeting algorithm. There is no active noise cancelling on the Solo 4; isolation comes passively from the UltraPlush on-ear cushions, which is adequate for an office or bus but not for a loud aircraft cabin.
Fit, folding and finding them
The Beats Solo 4 Slate Blue weighs 217 g and uses a flex-grip headband, adjustable sliders and ergonomically angled ear cups. It folds compactly and comes with a soft carrying case. On iPhone it pairs with one touch and sets up across your iCloud devices; on Android, one-touch pairing and automatic pre-pairing work with Google Play Services. If you leave them somewhere, Apple Find My or Google Find My Device shows the last known location.
Who This Is Not For
The Beats Solo 4 Slate Blue is not for anyone who needs active noise cancelling: there is none, only passive isolation from the cushions. On-ear cushions press on the ears rather than surrounding them, which some people find tiring after several hours, especially with glasses. There is no power adapter in the box. If you want ANC in an over-ear design, the Beats Studio Pro is the better fit.
Ordering from Totot
Totot sells the Beats Solo 4 Slate Blue brand-new and genuine in its sealed box, backed by a 1-year warranty from Totot. We deliver UAE-wide in up to 3 business days, and delivery is free on orders from AED 300, with cash on delivery or instalments via Tabby and Tamara. Items that arrive defective or not as ordered can be returned within 14 days, and any shipping damage should be reported within 48 hours of delivery. Browse more in our Headphones range, or see the official Beats Solo 4 Slate Blue page.
Beats Solo 4 Slate Blue Specifications
- Model: Beats Solo 4 (MUW43), Slate Blue
- Type: On-ear, wireless, foldable
- Drivers: Custom 40 mm transducers
- Battery: Up to 50 hours per charge
- Fast Fuel: 10-minute charge gives up to 5 hours
- Wired audio: USB-C (lossless, built-in DAC); 3.5 mm analogue input (no battery needed)
- Bluetooth: Class 1 Bluetooth 5.3
- Spatial Audio: Personalized Spatial Audio with dynamic head tracking
- Noise control: Passive isolation only (no ANC)
- Microphones: Digital beam-forming microphones with voice-targeting algorithm
- Tracking: Apple Find My, Google Find My Device
- Weight: 217 g
- In the box: Beats Solo 4, carrying case, USB-C to USB-C cable, 3.5 mm audio cable, Quick Start Guide, warranty card
- Colour: Slate Blue
- Warranty: 1-year warranty from Totot
Beats Solo 4 Slate Blue FAQ
Does the Beats Solo 4 Slate Blue have noise cancelling?
No. It has no ANC; the UltraPlush cushions give passive isolation only.
Can I use it on a plane?
Yes. The included 3.5 mm cable plugs into in-flight systems and needs no battery.
How long does the battery last?
Up to 50 hours per charge according to Beats, and 10 minutes of Fast Fuel gives up to 5 hours.
Does it work with Android?
Yes. One-touch pairing and Find My Device work on Android with Google Play Services.
Does Slate Blue show dirt easily?
No. The muted blue hides light marks better than the pale colours, though cushions still need an occasional wipe.
Is it genuine?
Yes. We sell the genuine Beats Solo 4 Slate Blue, brand-new in its sealed box.
How long does delivery take?
No more than 3 business days to any emirate, free from AED 300; the live fee for your order appears at checkout.
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