Features:1. Its lightweight makes it more comfortable to use in sports.2. Support Waterproof, you can take it anywhere.3. Magnetic design, do not worry about losing.4. It highlights a personality which meets your high quality requirements for music and life.5. Enjoy an impressively power sound be free Bluetooth play.Specifications:General Specification Brand WK Model BD350 Color Black, White Wearing Type Neckband Net Weight (g) 16g Dimensions (cm/ inch) 605*16.3*26.2mmTechnical Parameters Microphone Yes Wired Control Support Bluetooth Version 4.1 Transmission Distance 10m Receive Sensitivity ≥90dB Battery Capacity 65mAh, 3.7V Taking Time About 5h Working Time (h) About 4h Standby Time (h) About 130hPackage Included: 1*WK BD350 Wireless Bluetooth Earphone 1*Chaging Cable 1*Manual100% Hot and High QualityWe will carefully test every item before shipment.Notes:Due to manual measurements, please allow an error of 1-3 cm.Due to problems between different monitors, the image may not reflect the actual color, please refer to the actual product.If there is a problem with the product, please contact us.Thank you for understanding.FEEDBACK:1.If you are satisfied with our products and services,please leave your postive feedback and 5 stars.2.If you don't satisfied our products,pls contact us before you leave negative feedback.we guarantee we will 100% slove any problem for you and make you satisfied.SERVICE:1.We care about our valued customers,and will always try to help you,hope to establish long business with you.2.Please contact us by Jumia Customer service before leaving any negative feedback or opening and dispute on the site. Please give us the opportunity to resolve any problem.Thank you.