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PSB M4U TW1 True Wireless Earphones

PSB M4U TW1 True Wireless Earphones

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Speaker Sound Quality, No Strings Attached

The first true wireless earphones from established audiomaker PSB, the M4U TW1 is the result of over 40 years of advanced acoustic research from renowned speaker designer Paul Barton. Housing high-performance 8-millimeter drivers, these cutting-edge earphones deliver synchronous audio with deep bass and lifelike details—no matter what you’re listening to. Onboard Bluetooth with A2DP compatibility provides fast and far-reaching pairing with any device, while sensitive one-touch controls allow you to adjust volume, skip tracks, and answer calls. To keep up in wet conditions, the M4U TW1 features an around-ear IPX5 water-resistant body and an internal nano coating for two layers of protection—ideal for the gym and the great outdoors. 

PSB M4U TW1 True Wireless Earphones
PSB M4U TW1 True Wireless Earphones


  • PSB
  • Ear coupling: In-ear
  • Operating principle: Vented
  • Drivers: Dynamic driver and balanced armature 8-millimeter hybrids 
  • Connection: Bluetooth 4.1
  • Bluetooth codecs supported: A2DP
  • Frequency response: 20 Hz – 20 kHz
  • Battery life: 5 hours
  • Headband material: ABS and rubber
  • Driver enclosure material: Silicone eartips
  • Travel case material: EVA
  • Cable: Detachable
  • Cable length: 6 in (15 cm)
  • Dimensions (in travel case): 4.6 x 3.2 x 1.4 in (11.6 x 8.2 x 3.6 cm)
  • Weight (with cable): 0.1 oz (9 g)


  • 4 pairs of silicone eartips
  • 6 in detachable cable
  • 8 in (20.3 cm) USB-A to two Micro USB-B charging cable
  • Carabiner clip
  • Zippered storage case
  • Quick-start guide


Estimated ship date is Dec 21, 2020 PT.

Payment will be collected at checkout. After this product run ends, orders will be submitted to the vendor up front, making all orders final.

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