Item specifics Condition New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read more about the condition Number of Earpieces Double Custom Bundle No Color Black MPN Does not apply Year Manufactured 2022 Brand Unbranded Form Factor In-Ear Only Type Earbud (In Ear) Manufacturer Warranty 1 Year Wireless Technology Bluetooth Model Y809 Connectivity Bluetooth Features Active Noise Cancellation, Adjustable Headband, Ambient Sound Mode, Bluetooth Multi-point, Bone Conduction, Built-in Microphone, Built-In On/Off Switch, Call functions, Channel Monitor, Closed Back, Waterproof Microphone Type Built-In Cable Length 0.8 m Country/Region of Manufacture Hong Kong UPC does not apply Item description from the seller New Original Bluetooth Headphones TWS Wireless Earphones  Headset Sports Earbuds Waterproof Noise Reduction Support : any iPhone & Android , Universal Phone Function 1: Noise reduction Function 2: Power display Function 3: call function Function 4: Support music Bluetooth-protocol: 5.1 Channel: Stereo How to use: earplugs Whether single or binaural: bilateral stereo Colour: Black ChipType: Jerry Product size 7cm x 4cm x 3cm ABS material BT version 5.0 + EDR Battery capacity Single earphone: 35mAh Charging case: 350mAh Charging time is about 1-1.5 hours About 3-4 hours working time (working time depends on your usage) Standby time about 100 hours Working distance 10m Quantity: 1 (set) The package includes: headphones, charging compartment, instruction manual, box, charging cable