JPSaver 日本語
Bose Ultra Open Earbuds 空間オーディオ イヤホン オープンイヤー 完全 ワイヤレス Bluetooth接続 マイク付 最大7.5時間再生 防滴 ホワイトスモーク
￥36,000

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Bose Ultra Open Earbuds Buying Guide: Spatial Audio & Fit

This AI-assisted buying guide summarizes public product information. We have not used or performance-tested this product.

4.1(1,220)

JPSaver Score

Rating
4.1
Popularity
3.9

Open-ear wireless earbuds featuring Immersive Audio for spatial sound while keeping you aware of your surroundings. Note that battery life drops when spatial audio is active [S1].

👍 Great for

Ideal for those who need to stay alert to their environment during work or exercise, or for users who find in-ear buds uncomfortable [S1].

🤔 Not for you if

Those seeking total noise isolation or a fully immersive, silent environment should skip this model [S1].

✓ Pros

  • • Open-ear design allows for environmental awareness [S1]
  • • Immersive Audio provides a spatial listening experience [S1]
  • • Flexible and lightweight joint for comfortable wear [S1]
  • • IPX4 water resistance for sweat and splashes [S1]

✗ Cons

  • • Battery life drops to 4.5 hours with Immersive Audio enabled [S1]
  • • Lack of noise isolation due to the open-ear design [S1]

Review

The Bose Ultra Open Earbuds are truly wireless open-ear headphones designed to let users enjoy music while remaining aware of their surroundings [S1]. **Key Features and Specifications** Utilizing "OpenAudio technology," these earbuds aim to provide a high-quality private listening experience without blocking the ear canal [S1]. They feature "Immersive Audio" for a more realistic, spatial sound experience [S1]. The hardware consists of a flexible, ultra-lightweight joint designed for a simple clip-on fit [S1]. **Battery and Durability** Battery life lasts up to 7.5 hours of continuous playback, though this decreases to 4.5 hours when Immersive Audio is enabled [S1]. The included charging case provides an additional 19.5 hours of playback [S1]. The device is IPX4 water-resistant, making it suitable for sweat and light rain [S1]. **Limitations** As an open-ear design, these earbuds do not provide noise isolation; they are specifically built to keep the user connected to the outside world [S1]. Information regarding English-language app support or local warranty terms in Japan was not provided in the sources and should be verified separately.
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FAQ

Q. How long does the battery last? ▾

Up to 7.5 hours of continuous playback, or up to 4.5 hours when Immersive Audio is turned on [S1].

Q. Are they waterproof? ▾

They are IPX4 water-resistant, meaning they can handle sweat and light rain/splashes [S1].

Q. What is the total playback time with the charging case? ▾

The case provides an additional 19.5 hours of playback on top of the earbuds' maximum 7.5-hour charge [S1].

Sources and buying checks

This AI-assisted buying guide summarizes public product information. We have not used or performance-tested this product.

Guide updated: 2026-09-06

Before buying in Japan, check the exact model’s manual/app language, local warranty, required accessories and installation or compatibility requirements. Unlisted capabilities are not confirmed.

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This AI-assisted buying guide summarizes public product information. We have not used or performance-tested this product.

￥36,000 View on Amazon →