Description:This waterproof wireless headphone is comfortable to wear, the earphone has a soft ear tip.The waterproof Bluetooth-compatible Earphone is waterproof, so the sweat won't easily harm the earphone.The Bluetooth-compatible sports headphone has a good sound performance, provides clear sound and is good for music listening.The wireless headphone comes with a charging box, you can use it to store and charge the headphone.The Bluetooth-compatible earphone is made of strong and sturdy material, durable and long-lasting.Specification:BT: BT5.0.Transmitting Distance: 10m/33ft.BT Protocol: HFP, A2DP, HSP, AVCRP.Frequency Range: 20-20000Hz.Sensitivity: 98dB.Impedance: 16O.Waterproof: IPX5.Charging Box Capacity: 3.7V 450mAh.(Built-in)Earphone Battery Capacity: 2 * 3.7V 50mAh.(Built-in)Music Play Time: about 4 hours (depends on music volume).Charging Time: about 1.5 hours for earphones, 2 hours for charging box.Color: Black.Earphone Size: 25*30*26mm.Charging Box Size: 62*40*27.2mm/2.44*1.57*1.07in.Package Included:2x Earphones (Left and Right Ear-buds)(Battery built-in).1x Charging box.(Battery built-in)1x User Manual.1x Micro-USB Cable.