Dell Pro Stereo Headset WL5022, Product Type: Headset - Bluetooth - wireless - USB-A via Bluetooth adapter, Connectivity Technology: Wireless, Bluetooth Version: Bluetooth 5.0, Bluetooth Audio Codec: SBC, mSBC, CVSD, Bluetooth Profiles: Advanced Audio Distribution Profile (A2DP), Additional Functions: DSP, Sound Output Mode: Hi-Fi stereo, Software Certification: Zoom Certified, Certified for Microsoft Teams, Earpad Material: Leatherette, Max Operating Distance: 30 m, Features: SoundGuard DIGITAL Technology, voice alerts, Adjustable Headband, Battery: 1 rechargeable - lithium polymer, Capacity: 360 mAh, Recharge Time: 1.5 hour(s), Run Time (Up To): 15 hour(s), Hearing protection: This feature automatically detects sudden loud noises and prevents audio spikes to protect your hearing, Confirm your status at a glance: The status indicator light on your USB dongle lets you know if you’re on mute or in a call, Real time voice prompts: Enhanced audio alerts automatically announce your connection status, talk time and mute status, Track the location of your headset: Can’t remember where you left your headset? Use the Tile App on your smartphone to quickly find it, Weight: 150 g, 12y warranty