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.

Wireless headphones Blue Star BH02 white

Name: Wireless headphones Blue Star BH02 white
Brand: Blue Star
SKU: 998144
Price: 11.99 EUR
Availability: InStock

Description

Blue Star BH02 is all about high-quality music and conversation. It's a headphone with a playing time of up to 40 hours on a single charge and extra soft ear cups for comfortable use.

40 h on a single charge

The headphones are distinguished by exceptionally long playing time - up to 40 hours on a single charge . The device comes with a 1m USB-C charging cable .

High-quality sound

Strong bass and clear sound make listening to music a pure pleasure. The built-in microphone , on the other hand, allows for convenient conversations and the AUX input lets you connect the headphones to other devices, such as a laptop or smartphone.

Volume control butto ns

It features ultra-soft earcups and comfortable volume control buttons . All this helps provide comfortable use and allows you to enjoy your favorite music for up to several hours without feeling any discomfort.

Specification:

Bluetooth: 5.3

Wireless range: 10 m

Battery capacity: 500 mAh

Charging time: 2.5 h

Playback time: about 40 h

Speaker diameter: 40 mm

Impedance: 32 Ω

Sensitivity: 98±3 dB

Frequency range: 20-20 kHz

Input: AUX port, USB-C

Cable: USB – USB-C (1 m)

Sound control: buttons on the ear cup

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Wireless headphones Blue Star BH02 white

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