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Background

The Beats Solo 4 headphones were released on April 30, 2024, with an original retail price of $199 in the U.S. market. They are developed by Beats Electronics and marketed by Apple Inc. as the latest on-ear model in the Beats Solo lineup. Unlike the Studio Pro, the Solo 4 does not include Active Noise Cancellation or Transparency mode, but it introduces a redesigned custom acoustic architecture, support for Personalized Spatial Audio with dynamic head tracking on compatible Apple devices, and lossless audio playback via USB-C. The headphones offer up to 50 hours of battery life and use Bluetooth 5.3 rather than Apple’s W1 or H1 chips. The Beats Solo 4 has been offered in colors including Matte Black, Slate Blue, and Cloud Pink.

Identification

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  • The Beats Solo 4 headphones can be identified by the "4" on the outer metal portion of the band. <---
  • Model Numbers: MUW23LL/A (Matte Black), MUW43LL/A (Slate Blue), MUW33LL/A (Cloud Pink).
  • To locate the serial number: Expand the headband and look for the serial number on the slider above the right earcup. --->
  • Beats Solo 4 can be identified by the printed “Beats Solo 4” on the inside above the left earcup.

Technical Specifications

Sound

  • Spatial Audio with head tracking

Design

  • Form factor: on-ear
  • Flex-grip headband, adjustable ear cups
  • On-ear cushions
  • Multiple digital beam-forming microphones

Dimensions

  • 6.9 x 2.7 x 6.2 inches (175.3mm × 68.6mm × 157.5 mm)

Weight

  • 0.5 lbs (217 g)

Battery

  • 50 hours
  • USB-C charging
  • Lithium-ion battery

Connectivity

  • 3.5 mm Jack
  • USB-C input

Wireless

  • Class 1 Bluetooth
  • Bluetooth 5.3

Additional Information

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