I am an Chinese seller,providing customers with high-quality and low-cost products. The types of products we sell include Home & Kitchen,Health & Beauty,Fashion Clothing,Electronics,Watches & Jewelry,and so on. We keep up with the most popular fashion trends. If you like our products, please follow us and become our followers and fans. Sincerely at your service .Please feel free to contact us if you have any questions.Specifications:Ergonomic design, comfortable to wear.Lightweight and mini size, easy to carry.IPX4 waterproof level, great for sports, walking, running or other activities.With magnetic USB charger, you can charge the earphones anytime and anywhere.Compatible with most smart Bluetooth devices.Item Name: Bluetooth EarphoneMaterial: ABS + MetalBluetooth Version: V4.1 + EDRBluetooth Chip: ISSC2008Using Range: 12m Forward and 8m Back (Barrier-free Straight Line)Battery Capacity: 50mAh (Included)Music Playback Time: More than 3 HoursTalk Time: More than 4 HoursStandby Time: about 100 HoursCharging Time: about 1.5 HoursFrequency Range: 2.402GHz - 2.480GHzSupported Protocol: APTX/HFP/HSP/A2DPOutput Impedance: 50ΩWorking Voltage: 3VWorking Current: 15-16mAEnvironment Temperature: -20 Degree Celsius/+60 Degree CelsiusSupported System: for iOS/AndroidWaterproof Level: IPX4Features: Mini, Portable, Waterproof, Wireless, In-Ear, Noise ReductionUSB Charger Size: Length: 48mm/1.89", Width: 20mm/0.79" (Approx.)Notes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Bluetooth Earphone1 x Earphone Charger1 x User Manual a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a