Bluetooth version: 5.0Reception distance: 15 meters without barrierHorn size: 40mmFrequency response: 20Hz-20HzBattery capacity: 400 mACharging time: 2-3 hoursBattery life: 10 hoursStandby time: 300 hoursProduct weight: 228gNatural Talking Sounding Audio -- You will get the hear-and-be-heard advantages of a upgraded OneOdio bluetooth 24En Editor"s Note: Headphones, thanks to advanced CVC 8.0 undirectional noise reduction microphone technologyDual Mode Never Power Off -- The wireless mode: A built-in 400mAh battery provides up to10 hrs play time in a single charge. Wired mode: you can also use it as a wired headphone with the provided audio cable so the headphones will never power off.Deep Bass Sound -- Enjoy powerfull bass and supreme comfort. Large 50 millimeter speaker unit drivers combined with neodymium magnets provides stereo sound, powerful bass, clear vocal, and crisp high tones.Comfort Space Saving -- Over ear ergonomic designed memory ensure long lasting comfort. The foldable Headband is not only designed for saving your desk space but for carrying in the provided carrying bag.Works With: Compatible with all devices have 3.5mm audio Jack, like smartphone, laptop, PC or the devices support Bluetooth. About shlpping: All items will be shlpped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.