Dell Pro Wireless ANC Headset WL5024

Speaker size 40 mm Frequency response 20 Hz - 20 kHz Frequency response (music mode) 20 Hz - 20 kHz Frequency response (talk mode) 100 Hz - 8 kHz Speaker sensitivity 120 dB at 1 MW/1 kHz Noise reduction Hybrid ANC Protection of the user's hearing Yes - EN50332 Supported audio codecs are AAC (Advanced Audio encoding), SBC, LC3 Noise reduction (microphone) AI Up-Link Noise Reduction Microphone Type 5 (2 Analog, AI Beamforming and 4 Hybrid ANC) Microphone frequency range 100 Hz - 14 kHz Microphone direction Unidirectional, AI Beam Formation Sensitivity -45 dBV/Pa Signal-to-noise ratio (SNR) 55 dB Microphone rod Rotation by 100-130° (hidden, one-way, left) The form factor Invoices Weight 0.48 pounds Ear Cushion size (diameter) 2.75 inches (W) x 3.03 inches (H) Headband Material leather + memory foam The material of the ear pads leather + memory foam Fast charging Yes (connected). 15 minutes = approximately 10 hours (listening, ANC and busy indicator are off) Charging mechanism USB-C (connected for fast charging), charger (sold separately) Headset Battery Capacity 750 mAh Battery charging time 2.5 hours to full charge Talk/Listening time Conversation: Up to 34 hours (ANC and busy indicator are off) Up to 20 hours (ANC and busy indicator are on) Listening time: Up to 78 hours (ANC off and busy indicator off) Up to 50 hours (ANC on and busy indicator off) Transparency/Aware Mode Yes, adjustable Voice Assistant (Pass-Through) — only for iOS (Apple Siri), Android (Google Assistant, Samsung Bixby) mobile devices Telemetry Yes ANC mode Yes, the button AI Beam Shaping Yes The head sensor is yes. Usual LED usage/call indicators Double-sided, LED Control buttons Turning off/on the microphone on the earphone (turning off in hidden mode) Media (long press to call the voice assistant) Volume +/- ANC modes Power On/off (single press), BT pairing (long press to pair BT) MS Teams