♫[Bluetooth V4.1 High Fidelity Sound]: These Bluetooth headphones use the latest Bluetooth CSR-V4.1 + EDR matching speed and noise reduction and power-saving technology, no noise, stereo high-definition sound quality. Appearance is extremely noble and beautiful, according to the human body structure has been optimized, wearing comfortable, health, safety. ♫[Secure fit and Comfortable Sweatproof ]: Ergonomically designed with S/M/L 3 size flex silicone earplugs to ensure a comfortable and secure fit.IPX5 Waterproof protected your earbuds from Water-Damage. ♫[Ultimate Headphones for Sports]: They\'re extra comfortable and will never fall thanks to the secure fit ear-hooks. match your active lifestyle like running, jogging, cycling, driving, camping, hiking gym exercise and other outdoor sports. ♫[Widely Compatible]: Compatible with iPhone 7 6S 6 plus, LG G5 G4 G3, Samsung Galaxy S7 S6, Huawei, iPad ,Google Nexus smartphones Bluetooth-enabled Tablets etc; the Wireless Range up to 10 meters. It Can Connect Two Mobile Phones at the Same Time and Ready to Answer the Incoming Call of one Phone at Any time. ♫[More Safe Guarantee with JEEMAK]: 45 days money back and 12-month warranty and professional after-sale service within 24 hours.