| General |
| Model | WH-ULT900N |
| Product Series | Sony |
| Warranty (months) | 24 |
| Audio System |
| Sensors | Capacitive sensor |
| Recommended use | Portable electronics |
| Series | Ult Power Sound Series |
| Max operating distance | 10 m |
| Type | Headphones |
| Bluetooth audio codec | AAC, LDAC, SBC |
| Details | Automatic power-off, Wind noise reduction structure, Dynamic Head Tracking, Wear indicator |
| Audio Output |
| Adjustable headband | Yes |
| Wireless technology | Bluetooth |
| Number of simultaneously connected devices | 2 |
| Magnet material | Neodymium |
| Plated connector | Gold |
| Detachable cable | Yes |
| Headphone technology | Dynamic |
| Cable length | 1.2 m |
| Foldable | Yes |
| Headphone cup type | Closed |
| Driver diameter | 40 mm |
| Bluetooth version | Bluetooth 5.2 |
| Ear piece type for headphones | Full size |
| Impedance | 32 ohm |
| Available microphone | Yes |
| Sensitivity | 110 dB/mW |
| Active noise cancellation | Yes |
| Frequency response | 5 - 20000 Hz |
| Noise reduction | Yes |
| Connectivity interface | 3.5 mm jack |
| Headphone type | Binaural |
| Sound effects | Adaptive Sound Control, Ambient Sound Mode, 360 Reality Audio, Digital Sound Enhancement Engine (DSEE) |
| Connection | Wireless, Wired |
| Details | Precise Voice Pickup Technology, Google Fast Pair, Processor V1, Microsoft Swift Pair, MultiPoint Technology |
| Audio Input |
| Microphone technology | Electret condenser |
| Microphone form factor | Built-in |
| Included quantity | 4 |
| Noise reduction technology | Dual Noise Sensor Technology |
| Microphone operating method | Omnidirectional, Beamforming |
| Connections |
| Connection type | USB-C (power only) (24-pin USB-C) |
| Battery |
| Battery life (up to) | 50 hour(s) |
| Rechargeable battery | Rechargeable |
| Technology | Lithium-ion |
| Charging time | 3.5 hour(s) |
| Type | Headphone battery |
| Internet of Things (IoT) |
| compatible with Internet of Things (IoT) | Yes |
| Intelligent assistant | Google Assistant, Built-in Alexa |
| Miscellaneous |
| Build material | Recyclable plastic |
| Color | Black |
| Color category | Black |
| Included accessories | USB charging cable, Carrying case, Headphone cable (1.2 m) |
| Bluetooth profiles | Serial Copy Management System (SCMS-T), Headset Profile (HSP), Audio/Video Remote Control Profile (AVRCP), Advanced Audio Distribution Profile (A2DP), Hands-Free Profile (HFP) |
| Custom standards | JEITA, Bluetooth Class 1 |
| Cable Details |
| Cable details | USB charging cable - detachable, Audio cable - detachable - L-shaped / mini jack stereo at 3.5 mm - 1.2 m |
| Runtime Details |
| Runtime details | Continuous playback (AAC, active noise reduction on): up to 30 hours, Continuous conversation (active noise cancellation on): up to 30 hours, Continuous playback (active noise cancellation off): up to 50 hours, Continuous conversation (active noise cancellation off): up to 40 hours |