# Tidesmit M91 Open Ear Sleep Headphones Mask

## Eliminate Ear Canal Fatigue During Every Session

**Tidesmit M91** is a **Sleep Headphones Mask** designed for **athletes and active sleepers**. It delivers premium **fitness audio** while ensuring total comfort through an innovative **open ear headphones** design.

## The Problem We Solve

Traditional **bluetooth earphones** often cause painful ear canal pressure during long-term use. **Tidesmit M91** resolves this by utilizing **bone conduction style** air-conduction technology that keeps your ears open and fatigue-free.

## Why You Need It

-   **8-Hour Battery Life:** Experience uninterrupted playback for workouts or overnight use with high-capacity power.
-   **Safe Listening Design:** Remain aware of your surroundings while enjoying crisp audio during outdoor sessions.
-   **Sweatproof Durability:** Rely on this rugged **sport running headset** to withstand intense moisture and heat.
-   **Wireless Hands Free:** Enjoy seamless connectivity for calls and music without the tangle of messy cables.
-   **Ergonomic Fit:** The lightweight construction ensures the device stays securely in place during active movement.

### Technical Specifications

-   Connectivity: Bluetooth 5.3
-   Playback Time: 8 Hours continuous
-   Design: Open-Ear Sport
-   Protection Rating: Sweat-resistant IPX4

Upgrade your audio experience and order your Tidesmit M91 today for ultimate comfort and high-fidelity sound.

## Details

- **Price:** 32.52 EUR
- **Vendor:** Tidesmit
- **Type:** Sleep Headphones Mask
- **Tags:** bluetooth earphones, bone conduction style, fitness audio, Headsets, long battery life, open ear headphones, safe listening, sport running headset, sweatproof workout gear, wireless earbuds, wireless hands free

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Purple / M91 | 32.52 EUR | In stock |
| Skin / M91 | 32.52 EUR | In stock |
| Black / M91 | 32.52 EUR | In stock |

## Images

- Purple open-ear sleep headphones earbuds in charging case, earbuds docked
- Purple open-ear sleep headphones earbuds with charging case, ear loop visible
- Purple open-ear sleep headphones earbuds showing speaker mesh and ear hook
- Open-ear sleep headphones earbuds worn by two people, blue-tinted ear tips
- Purple open-ear sleep headphone earbud with ear loop and speaker grille
- Purple open-ear sleep headphones charging case with earbuds in front of a phone
- Purple open-ear sleep headphones earbuds in charging case, compact front view
- Beige open-ear sleep headphones earbuds in charging case, compact front view
- Black open-ear sleep headphones earbuds in charging case, compact front view

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> Source: [Tidesmit](https://tidesmit.com/products/new-ows-m91-ear-clip-air-conduction-open-wireless-earbuds-hi-res-sound-quality-earphones-with-ai-hd-call-and-noise-cancellation)
> Updated: 2026-08-29