What is the difference between active noise cancelling and passive isolation?

Passive isolation is just the shape of the headphone: in-ear tips or over-ear pads physically block sound. Active noise cancelling (ANC) also listens to your surroundings through microphones and generates an opposing wave, so it works best on steady drone — a plane, a bus, ventilation. ANC does very little against sudden sounds such as speech.

How long do wireless earbuds really last on one charge?

In-ear buds usually play for 4–8 hours, and the case adds another two to four full charges. Over-ear headphones last 20–40 hours. High volume, ANC and cold weather all cut into that — in winter expect roughly a fifth less.

Can I use one pair with both my phone and my computer?

Yes, if the headphones support multipoint: they stay connected to two devices at once and switch by themselves when a call starts on the computer. Without multipoint you have to disconnect one device manually every time.

WEKOME S28 Pop Digital Series Bluetooth 5.3 TWS...

Name: WEKOME S28 Pop Digital Series Bluetooth 5.3 TWS earbuds with a projector built into the charging case and 5 projector slides, white
Brand: Wekome
SKU: 6894974
Price: 14.99 EUR
Availability: InStock

Description

WEKOME S28 Pop Digital Series are white TWS in-ear earbuds with Bluetooth 5.3 and a projector built into the 400 mAh charging case. Five interchangeable projector slides are included, allowing the case to cast small themed images onto a nearby surface. Projection clarity depends on ambient light, distance and focus; this is a decorative feature rather than a display-grade projector.

Each earbud has a 30 mAh battery, a 10 mm driver and a stated weight of about 3.7 g. The specified frequency range is 20 Hz–20 kHz, and the built-in microphone supports calls.
The stated wireless range is up to 10 m in unobstructed conditions. Walls, interference and the connected device can reduce it.
WEKOME states approximately 3 hours of music playback per earbud charge, about 50 minutes for earbud charging and up to 80 hours of standby. Actual time depends on volume, signal, calls and battery age.
The case stores and recharges both earbuds through its USB-C input; the 400 mAh figure refers to the case, not to each earbud.

The package contains two earbuds, one charging case with a projector, 5 projector slides, one USB-C cable and a user guide.

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WEKOME S28 Pop Digital Series Bluetooth 5.3 TWS earbuds with a projector built into the charging case and 5 projector slides, white

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