1. Introduction
The Sansui W90 ear clip wireless Bluetooth earphones offer a comfortable, "not in ears" design with air conduction technology, providing a unique listening experience. Featuring Bluetooth 5.4 for stable connectivity, ENC (Environmental Noise Cancellation) for clear calls, and a long-lasting battery, these earphones are designed for active lifestyles and extended use.
Video: Sansui W90 Product Overview
2. Package Contents
Please check the package for the following items:
- Sansui W90 True Wireless Bluetooth Headset (2 earphones)
- Charging Case
- Charging Cable (Type-C)
- User Manual
Image: Basic Information and Package Contents of Sansui W90.
3. Specifications
| Feature | Specification |
|---|---|
| Brand Name | SANSUI |
| Model | W90 |
| Style | Ear Clip (Air Conduction) |
| Material | ABS, Silica Gel |
| Vocalism Principle | Dynamic |
| Driver Diameter | 13mm |
| Communication | True Wireless (Bluetooth) |
| Bluetooth Version | 5.4 |
| Bluetooth Pairing Name | SANSUI |
| Bluetooth Protocols | HFP, A2DP, HSP, AVRCP |
| Working Frequency | 2.402GHz-2.480GHz |
| Audio Codecs | AAC, SBC |
| Maximum Wireless Range | ≥10 meters (open space without obstacles) |
| Noise Reduction Type | Single microphone ENC double mark algorithm call noise reduction (23 dB) |
| Microphone | Yes |
| Active Noise-Cancellation | No |
| Control Button | Yes |
| Volume Control | Yes |
| Waterproof | Yes |
| Headphone Battery Capacity | 40mAh/3.7V (Li-ion polymer) |
| Charging Case Battery Capacity | 500mAh/3.7V (Li-ion polymer) |
| Headphone Charging Time | Approx. 1.5 hours |
| Charging Case Charging Time | Approx. 1.5 hours |
| Music Playback Time (single ear) | Approx. 5 hours |
| Talk Time (single ear) | Approx. 3.5 hours |
| Total Music Playback Time (with case) | Approx. 25 hours |
| Total Talk Time (with case) | Approx. 16 hours |
| Charging Case Recharges Earphones | Approx. 4 times |
| Headphone Standby Time | Approx. 120 hours |
| Features | Waterproof, With microphone, Amazon Alexa Support, Apple Siri Support, Google Assistant Support |
| Certification | CE, FCC, RoHS |
4. Setup
4.1 Charging the Earphones and Case
Before first use, fully charge the earphones and charging case.
- Charging Earphones: Place the earphones into the charging case. Ensure they are properly seated for the thimble contacts to connect.
- Charging Case: Connect the provided Type-C charging cable to the charging port on the case and to a suitable USB power source.
- Charging Indicators: (Refer to the product's LED indicators for charging status, typically a solid or blinking light indicates charging, and off or a different color indicates full charge.)
A full charge for both earphones and the charging case takes approximately 1.5 hours.
4.2 Bluetooth Pairing
To connect your Sansui W90 earphones to your device:
- Open the cover of the charging case.
- Take out both earphones. They will automatically power on and enter pairing mode.
- On your mobile phone or Bluetooth-enabled device, go to the Bluetooth settings.
- Search for available devices and select "SANSUI" from the list.
- Once connected, you will hear a confirmation sound, and the earphones will be ready for use.
The earphones support dual stereo channels.
5. Operating Instructions
5.1 Wearing the Earphones
The Sansui W90 features an ear clip design for comfortable and secure wear without entering the ear canal. The silicone design ensures comfort even during prolonged use and active sports, preventing them from easily falling off. Each earphone weighs only 4.7g, providing a truly