LINKVIL DH401B OWS Bluetooth Headset 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. Compatible with LINKVIL portable phones and Fanvil VoIP phones, DH401B offers up to 23 hours of talk time with the charging case — enough to keep you productive throughout the day. Highlights: Open-ear design ensures hygiene and safety while keeping you aware of your surroundings Bluetooth 5.4 multipoint connection enables seamless switching between smartphone and PC 13.6g lightweight ear-hook open-ear design for all-day comfort Dual-mic AI noise cancellation with precise voice pickup for clear, natural communication Portable charging case with compact design and visible battery indicator High-quality speaker delivers clear and transparent sound performance Compatible with LINKVIL Portable Phones and Fanvil VoIP Phones Technical Specifications: Microphone Type: 2 omnidirectional analog microphones Sensitivity: -38 dBFs/Pa Frequency Range: 100Hz–8KHz Speaker Size: 18×11mm Max Input Power: 30mW Sensitivity: 122dB Impedance: 16? Frequency Range: 20Hz–20KHz Music Mode Bandwidth: 100Hz–20KHz Speak Mode Bandwidth: 100Hz–8KHz User Hearing Protection: EN50332 Audio Features Crystal sound experience Audio Codecs: AAC, SBC Full-duplex technology AI Environment Noise Cancellation (AI ENC) Acoustic Echo Cancellation (AEC) Physical Specifications Headset Dimensions: 90.2 × 40.5 × 27.4mm Charging Case Dimensions: 95.6 × 50.6 × 35.4mm USB Cable Length: 0.6m Gift Box: 138 × 130 × 44mm Carton Package: 575 × 295 × 289mm (48 pcs) Headset Weight: 13.6g Charging Case Weight: 48.2g Operating Temperature: -10°C to 50°C Storage Temperature: -20°C to 70°C Working Humidity: 10%–95% RH
