Jaybird X4 Wireless Bluetooth Headphones for Sport Fitness and Running, Compatible with iOS and Android Smartphones: Sweatproof and Waterproof – Black Metallic/Flash

Customers give positive feedback about the headphones' sound quality, with one noting the bass doesn't fart out. The battery life receives mixed reviews - while some say it's as advertised, others report it stops holding a charge. Moreover, the reliability is concerning, with multiple customers reporting that the earbuds stop working from day to day. Additionally, the fit is mixed, with some enjoying it while others say they don't stay in their ears, and durability is poor as they break after 8 months of use. Comfort is also mixed, with some finding them comfortable while others report extreme soreness after 5 minutes, and opinions on value for money are divided between those who find them well worth the price and those who consider them a waste of time and money.