JBL is the world's largest manufacturer of professional speakers, with a large number of sports headphones, covering the high, medium and low ends, and focusing on three product lines: the UA series for professional sports, the Endurance series for extreme sports, and the Reflect series for lightweight sports.
 
The UA series was launched by JBL in collaboration with sports brand Under Armour, and the UA Flex headphones won the eighth place in CNET's 2018 Best Sports Headphones of the Year and were also the winners of the VGP 2018 SUMMER. Its price is 1299 yuan, using the popular hard collar design, which can reduce the pressure on the ear, and the collar part can be bent to make it more suitable for the human body. LED strips are also added to the back of the collar neck to improve the safety of night running. In addition, the UA Flex is equipped with shark fin and wing earbud covers, so you don't have to worry about the security of the fit. Its waterproof rating reaches IPX5, the battery life is 11 hours, and you can listen to songs for 1 hour after 5 minutes of charging, and its performance has reached a high level compared with similar products.
 
The UA Flex doesn't use aptX or AAC Bluetooth encoding, but the sound is not bad, the low end is elastic, the midrange is slightly concave but the density is acceptable, enough to support the vocal performance, and the high frequency is naturally comfortable and glitch-free, which is generally more suitable for listening to pop music. Among the UA series products, there are also headphones UA Train, rear headphones UA 1.5, and UA heart rate version headphones, which are priced at 1899 yuan, 1099 yuan and 1899 yuan respectively. In addition to UA Train, UA series headphones all have a matching mobile APP, which can not only record exercise data and make exercise plans, but also become a member of the user community, share exercise information with others, and compete with each other.
 
The Endurance series generally has a high level of protection, and all of them have anti-shedding technology and FlexSoft technology to emphasize durability and durability. The Sprint headphones of this series were selected as CNET's 2018 Best Sports Headphones of the Year, ranking fifth. It is a rear-mounted, earhook structure, and CNET believes that the Endurance Sprint has the advantage of being a secure and comfortable fit, with a waterproof rating of up to IPX7. The disadvantage is that the learning cost of touch operation is high, and the high-frequency part of the sound needs to be improved, but combined with its 499 yuan price, it is still quite worth starting.
 
The Reflect series has the largest number of products and a large price span, ranging from 399 yuan to 1499 yuan. Among them, the Reflect Fit, priced at 1299 yuan, is the award-winning model of VGP 2018 SUMMER, which is a hard collar Bluetooth headset, the biggest highlight is that it adds a heart rate monitoring function and supports incoming call vibration. The Reflect Fit cable incorporates reflective materials and has an ambient sound pattern for further safety. In addition, it supports IPX5 waterproof, adds shark fins, and has a battery life of up to 10 hours, and can listen to songs for 1 hour after 15 minutes of charging. Reflect Fit also doesn't support aptX or AAC Bluetooth encoding, and in terms of hearing, its low-frequency dive is just right, and the mid-range vocals and high-frequency are also good, but the focus is still on the low-mid part, which is suitable for pop music with a strong sense of rhythm.
 
The Mini 2 in the Reflect series ranked CNET's 2018 Best Sports Headphones of the Year. Its price is 699 yuan, and it adopts a rear-hanging wearing method, equipped with shark fins, and supports IPX5 waterproof. CNET says that the Reflect Mini 2 is lightweight and fits the human ear, making it very comfortable to wear, with a 10-hour battery life that stands out compared to similar products, and the addition of reflective materials to ensure safety at night, but at its price point, the sound quality of the Reflect Mini 2 should be better.