SONY WH-ULT900NH gray-green headphones

Power Required charging power (max): 2.5 W USB Type-C charging port: Yes Required charging power (min): 2 W USB Power: No Weight and dimensions Product weight: 255 g Efficiency Product color: Green Control Type: Touch Headset type: Monaural Cable length: 1.2 m Works with Amazon Alexa: Yes Wearing style: Headband Works with Google Assistant: Yes Detachable cable: Yes Application: Calls/Music Product type: Headset LED diodes Landing Power supply Apple Siri compatibility: Yes HD Voice: Yes Packaging data Package depth: 201.5 mm Package width: 70 mm Weight with packaging: 441 g Package height: 254 mm Package contents Quick Start Guide: Yes Cables: USB AC adapter: No Warranty card: Yes Charging stand: No Ports and interfaces Bluetooth profiles AAC LDAC A2DP SBC HSP HFP AVRCP Frequency band: 2.4 GHz Contact coating material: Gold Connectivity: Wired and wireless Bluetooth: Yes 3.5mm connector: Yes Wireless router range: 10 m USB connection: Yes Bluetooth version: 5.2 Frequency response (music mode): 5 - 20000 Hz Battery Battery powered: Yes Battery capacity: 520 mAh Supported battery type: Built-in Battery voltage: 3.85 V Charging source: USB Charging time: 3.5 hours Battery type: Lithium-ion (Li-Ion) Fast charging: Yes Fast charging time: 10 min Talk time (ANC off): 40 h Talk time (ANC on): 30 h Continuous audio playback time (with ANC): 30 h Continuous audio playback time (without ANC): 50 h Other functions Voice prompt languages: English Microphone Microphone type: Built-in microphone Headphones Headphone construction: Circumaural Driver Type: Dynamic Impedance: 314 Ω Frequency response: 5 - 20000 Hz Acoustic system: Closed Headphone sensitivity: 110 dB Speaker diameter: 4 cm Magnet type: Neodymium Noise Cancellation: Yes