NuForce is an American high-end audio brand founded in 2005. With its unique Class D amplification technology and products, NuForce quickly became well-known in the high-end audio market and received praise from many audiophiles. Today, NuForce is part of Optoma, the world's largest projector brand.
 
Defined by Nuforce as a "Bluetooth HiFi Light Sports Headphone", the NuForce BE6i scored 76 points in the U.S. Consumer Reports, ranking joint first in its category, and was also recommended in the Consumer Reports feature article "6 Great Wireless Headphones" as the best sound quality sports headphones.
 
BE6i is priced at 899 yuan, take the improvement i as an upgraded version of BE6, adopt a back-hanging design, add shark fins to fix, come with a COMPLY sponge case with excellent sound insulation, and the tail of the earbuds has a magnetic force to fix it when idle, but the weight of 19g seems to be a little heavy. It is IPX5 waterproof, has a battery life of 8 hours, and uses the largest 10mm driver in its class of headphones, and supports aptX and AAC Bluetooth encoding. Soundly, the BE6i's three frequencies are well-balanced and well-connected, with a relatively prominent midrange, and excellent sound density, detail, and musicality.
 
NuForce sports headphones are mainly launched in the BE Sport series, which are lighter and add more durable cables and other materials. The latest model of the series is the BE Sport4, priced at about 750 yuan, and won the gold award in the VGP2018 SUMMER. The BE Sport4 is an upgraded version of the BE Sport3, weighing 15.5g and adding a shark fin and magnetic design, making it sturdy and portable. In addition, it uses patented double-layer ear tips that fit better in the ear canal, and the cable is made of Kevlar reinforced material. The BE Sport4 supports IPX5 waterproofing, has a battery life of up to 10 hours, and also has a fast charging function for 15 minutes and listening to songs for 2 hours. In terms of sound quality, the BE Sport4 software not only supports aptX and AAC Bluetooth coding, but also uses a 6mm graphene diaphragm unit on the hardware, the sound is transparent and clean, with a strong three-frequency separation, and the overall style is more inclined to pop music.
 
There are only two models in the BE Sport range currently on sale, in addition to the BE Sport4, there is also the BE Sport3. The latter is lighter, 13g, but it does not support fast charging, and other aspects are the same as BE Sport4, and the price is 699 yuan.
 
The BE Free series is a new series of split Bluetooth headsets launched by NuForce, which has certain sports attributes. The series has BE Free8 and BE Free5 two products, BE Free8 has a higher positioning, the price is 1299 yuan, and it is also a VGP2018 SUMMER gold medal model. BE Free8 is one of the few split Bluetooth headsets that supports both aptX and AAC Bluetooth encoding, using a 5.8mm driver unit, flexible low frequencies, thick mid frequencies and not too tough, delicate vocals, and crisp and bright high frequencies, with strong resolution, suitable for listening to female voices and light music. Another highlight of the BE Free8 is the use of NFMI technology, low power consumption and stable transmission, which can receive signals even underwater, and its waterproof rating is IPX5. In other aspects, the weight of the BE Free8 is 11g, the battery life of a single 4 hours is relatively average, and the storage box provides 12 hours of power, without adding fixed measures such as shark fins and ear hooks.
 
BE Free5 was launched later, weighing 12.6g, and the Bluetooth version was upgraded from 4.1 to 4.2 of BE Free8, adding shark fins for fixation, and at the same time supporting fast charging for 15 minutes and listening to songs for 1 hour, but only supporting aptX Bluetooth encoding. In other aspects, BE Free5 is the same as BE Free8, and the price is 999 yuan.