Product Features: Immersive Music ExperienceThe 8-core driver enhances the sound quality, and the crystal-clear sound brings you as close as possible to the feeling of listening to your favorite music live. Stable and fast signal transmissionAdopt professional Bluetooth 5.2 chipset, low power consumption technology, stable signal transmission, prolong playing time. Comfortable In-EarErgonomic in-ear earbuds and ear hooks bring comfort, even if you wear it for a long time, it will not feel heavy. IPX5 waterproof and sweat-proofsupport IPX5waterproof splash, sweat splash is not afraid, exercise headphones. Product Specifications: 1.Product Name: L15 Business Sport Wireless Headphone 2.Product Color:BlackGray 3.Bluetooth Version:Bluetooth 5.2 4.Music Time:About 4-5 Hours 5.Charging Time:About 1 Hours 6.Wear Type:Ear-Hook 7.Touch Control:YES 8.Distance: about 10 meters 9.Charging time: about 1 hour 10.Frequency: 20Hz-20KHz 11.Impedance: 32 ohms 12.Product Size: 53*36*27mm Package Includes: 1x Business Sport Bluetooth Earphone 1x Charging Cable 1x Manual About Us: Dear customers,we are professional manufacturer that produce Bluetooth devices like Bluetooth adapters,Bluetooth earphones and Bluetooth speakers.We will test all the products before we send the products out,which make sure that you will receive the perfect products.