Detailed Specifications
Yealink W78H - DECT IP Cordless Handset
Overview :
The Yealink W78H is a wireless DECT handset designed as an add-on extension for the W70B base station and W80/W90 multi-cell systems. It addresses the need for reliable voice communication coverage across warehouses, retail floors, medical facilities, and multi-storey office buildings where desk phone mobility is essential.
The handset is equipped with a 1010 mAh lithium-ion battery delivering up to 21 hours of talk time and 166 hours of standby on V0 hardware (up to 320 hours on V1-V4 revisions). It supports two simultaneous calls per handset, a full-duplex speakerphone, and 3-way local conferencing. HD audio with Flexible Noise Reduction (FNR) delivers 100 Hz - 7 kHz frequency response, and the device is Hearing Aid Compatible (HAC).
Deployment is for business users in single-cell (up to 10 handsets) or multi-cell environments (seamless roaming across W80DM/W90DM). The handset includes built-in Bluetooth 5.1 for wireless headset connectivity and a 3.5 mm jack for wired headsets. Do not use this handset with third-party DECT base stations, as Yealink DECT devices are not interoperable with non-Yealink infrastructure.
Key Features :
2.4" 240 × 320 TFT colour display with keypad backlight
Bluetooth 5.1 + 3.5 mm headset jack for flexible audio
Vibration alarm ensures calls are noticed in noisy environments
Quick charge: 10 min for 2 hours talk time
Seamless roaming in multi-cell W80/W90 systems
Specifications :
| Specification | Detail |
|---|
| Brand | Yealink |
| Part Number | W78H |
| Manufacturer Part No. | 1302023 |
| Product Type | DECT IP Cordless Handset |
| Display | 2.4" 240 × 320 TFT colour screen (handset); Note: secondary specification states 1.8" LCD 128 × 160 |
| Keypad Backlight | Yes |
| Colour | Space Gray / Black |
| DECT Frequency (EU) | 1880 - 1900 MHz |
| DECT Frequency (US) | 1920 - 1930 MHz |
| Indoor Range | Up to 50 m (164 ft) |
| Outdoor Range | Up to 300 m (984 ft) |
| Talk Time | Up to 21 hours (ideal conditions) |
| Standby Time (V0) | Up to 166 hours |
| Standby Time (V1-V4) | Up to 320 hours |
| Quick Charge | 10 minutes → 2 hours talk time |
| Battery Capacity | 1010 mAh, Li-ion, 3.7 V |
| Handset Weight | 98 g (0.22 lbs) |
| Handset Dimensions (H×W×D) | 151 × 49.5 × 21 mm (5.94" × 1.95" × 0.83") |
| Headset Connectivity | Bluetooth 5.1 + 3.5 mm jack |
| Speakerphone | Full-duplex |
| Frequency Response | 100 Hz - 7 kHz |
| Noise Reduction | FNR (Flexible Noise Reduction) |
| Phonebook Capacity | 100 entries (stored in base) |
| Call History | Up to 100 entries |
| Simultaneous Calls | Up to 2 per handset |
| Base Station Compatibility | W70B (single-cell), W80DM/W90DM (multi-cell) |
| Hearing Aid Compatible | Yes |
| Included Accessories | Charger cradle, power adapter (5V/0.6A), belt clip, battery |
| Operating Temperature | -10°C to +50°C (14°F to 122°F) |
| Storage Temperature | -30°C to 70°C (-22°F to 158°F) |
