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Sennheiser CX 150BT (Black)

Model: CX 150BT Black 508380 · US configuration

Black Sennheiser CX 150BT sealed-tip neckband earphones with inline control
Manufacturer product image · Sennheiser

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CX 150BT Black 508380 is an earlier, end-of-life sealed-tip Bluetooth neckband whose manual lists SBC/AAC and a ten-hour maximum via SBC. Its listed package has no charging case; remaining battery capacity and any seller offer are unverified.

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Assessment scenario: Earlier sealed SBC neckbands without ANC

An editorial assessment scenario for someone who permits earlier models, wants a sealed in-ear fit, excludes active ANC and selects SBC over Classic Audio. It is not a statement of the visitor’s intent, a fit guarantee or evidence of live availability.

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Why consider this model?

  • The exact SEBT2 manual identifies a neckband cable and ear-canal coupling with four XS/S/M/L adapters.
  • The exact-model manual lists SBC and specifies up to ten music-playback hours via SBC; the authored matcher keeps this one-source codec plan separate from multipoint.
  • The U.S. manufacturer page marks the model end-of-life; it is assessed only as an earlier reference, not a current offer.

Tradeoffs to weigh

  • A sealed tip is a design description, not a promise of individual comfort, seal or retention.
  • No ANC mode, IP water rating or charging case is documented; the manufacturer says to keep the product dry.
  • The ten-hour playback maximum is SBC-only, not an independent test or an ANC runtime. The manual gives a 1.5-hour charge time, not the remaining health of an older battery.
  • The two-device connection claim is separate from the SBC plan because available sources do not quantify codec/runtime operation during multipoint.
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Manufacturer information