Timekettle has introduced the W4 Pro Earbuds and its new Babel OS, designed to revolutionize global communication. With capabilities for real-time translation across 40 languages and 93 accents, these earbuds are set to bridge language gaps in both casual and
professional settings.
The W4 Pro Earbuds improve on Timekettle’s previous offerings, combining cutting-edge technology with a lightweight and ergonomic design meant for extended use. They feature an open-ear fit, prioritizing comfort, while advanced AI technology ensures accurate and natural voice translations.
Key features of the W4 Pro include:
- Two-Way Call Translation: Live translation is available during phone or video calls without requiring the other party to download any software. This is ideal for both business meetings and personal conversations.
- High Translation Accuracy: With up to 95% accuracy, the earbuds utilize sophisticated language processing, translating speech swiftly within 3 to 5 seconds.
- Multiple Modes for Various Settings: The “One-on-One Mode” enables two users to share an earbud for face-to-face dialogues, while “Switch to Speak Mode” broadcasts translations through a phone speaker, perfect for presentations or multilingual discussions.
- Bilingual Transcription in Real-Time: Connected to a mobile application, the earbuds can produce live bilingual transcripts during conversations, making it easy to capture important details, which can later be exported for meeting notes.

The foundation of the W4 Pro lies in the Babel OS, which enhances the earbuds and other Timekettle devices. Babel OS implements advanced AI for quick and accurate translations, utilizing:
- AI Semantic Segmentation: This function breaks speech into smaller parts for expedited translations while keeping the
conversation’s flow intact. - Customizable Lexicons: Users can build personalized vocabularies suited for specific industries or informal language uses, ensuring accurate translation of technical terms or slang.
- Human-Like Expression: Thanks to innovative voice cloning, Babel OS can translate speech in a way that mimics natural tone and emotional depth, making conversations feel authentic.
- Offline Translation Options: Users can rely on offline capabilities, which is advantageous for travelers in areas with limited internet access.
The design of the W4 Pro caters to users looking for durability and comfort. With a noise-reducing feature, conversations remain clear in various environments. The earbuds offer up to 12 hours of battery life, recharging quickly in one hour, making them suitable for long workdays and late-night chats.
The starting price for the W4 Pro is set at $449, marking it as a premium option in the market. Timekettle also offers alternative models like the WT2 Edge/W3 Earbuds and T1 Interpreter, which share Babel OS features at different price levels.
These earbuds ensure compatibility with major platforms such as Zoom, WeChat, and WhatsApp, making them a valuable tool for both work and personal communication. They can also automatically generate meeting summaries, minimizing post-call administrative work.
The W4 Pro Earbuds are expected to be available starting January 7, 2025.

