The LINKVIL DH401B OWS Bluetooth Headset delivers clear and natural communication wherever you work — in transit, at the office, or on the go. Its open-ear design ensures hygiene and situational awareness for safer, more natural interaction. Equipped with dual-mic AI noise cancellation and precise voice pickup, it keeps every call crystal clear. The 13.6g lightweight ear-hook design provides a secure, comfortable fit, while Bluetooth 5.4 multipoint connection allows seamless switching between phone and PC.




Key Features
- Open-ear (OWS) design for hygiene and situational awareness
- Ultra-lightweight at only 13.6g with secure ear-hook fit
- Dual-mic AI Environmental Noise Cancellation (AI ENC)
- Bluetooth 5.4 multipoint with 2 simultaneous connections
- Charging case provides up to 23 hours total talk time
- Audio codecs: AAC and SBC support
- Compatible with LINKVIL portable phones and Fanvil VoIP phones
- Full-duplex technology with Acoustic Echo Cancellation
Specifications
| Type | OWS Bluetooth Headset with Charging Case |
| Bluetooth Version | 5.4 |
| Bluetooth Profiles | HFP, A2DP, AVRCP |
| Bluetooth Range | 10m |
| Microphone | 2 omnidirectional analog microphones |
| Mic Sensitivity | -38 dBFS/Pa |
| Speaker Size | 18×11mm, 16Ω |
| Speaker Sensitivity | 122dB |
| Frequency Range | 20Hz~20KHz |
| Audio Codecs | AAC, SBC |
| Headset Battery | Lithium Polymer 60mAh |
| Headset Talk Time | 5 hours |
| Charging Case Battery | Lithium Polymer 400mAh |
| Total Talk Time (with case) | 23 hours |
| Total Music Time (with case) | 36 hours |
| Headset Weight | 13.6g |
| Charging Case Weight | 48.2g |
| Working Temperature | -10°C to +50°C |











