The collaboration of complete wireless earphone JBL of the design which JBL UA TRUE WIRELESS STREAK was fashionable, and was compact and under Armour was used habitually in every scene concerned with music and realized it by partnership with Audio System "JBL" which had been trusted by many professionals and "under Armour" that raised, "I evolved an athlete" in the mission. The completely wireless earphone which was designed compactly to realize a higher feeling of wearing and comfort. The superiority in the only by the under collaboration model with Armour is a design available more fashionably while keeping it. I design the size of the earphone approximately 30% small, and one size bundles small XS and S, medium size with a tip, the enhancer with the wing than usual from stylish new model model "UA TRUE WIRELESS FLASH X" already now on sale who adopted a compact design in a year. When it is accompanied by intense movement such as in practice game, you can use even and the small ear in peace without minding a gap and a fall. For a simple and stylish design, it is easy to use the daily life by not only the verge of practice game such as the but also the commuting attending school and is the model that is easy to have you use the for the first time earphone for for used. The earphone is available for wireless music reproduction of up to approximately six time by the charge of approximately two hours. Furthermore, if store an earphone in a charge case; for up to approximately 12 time can charge it, is up to approximately 18 time in total ※1 music reproduction is possible. It is with two of talk through function, ambientoauea function as a function to make it easy to grasp outside sound in ambientoauea making it easy to hear the talk through function that is in a conversation at the time of the training, an environment sound. I can speak the talk through function with the next person without removing an earphone at time when I want to talk during training, and volume of the reproduction music falls down when I tap the Logo part of the left earphone once and can talk in a state to hear an outside sound. At the time of time or accounts of the shopping that want to talk with an instructor during training, it is the function that is convenient when I want to talk temporarily. The function that can make it easy to hear neighboring environmental sounds as for the ambientoauea function. I can have you enjoy music in safely by making it easy to hear the sound of the car and the sound of the circumference. In addition, it is when it wants to prevent you from missing important information including the broadcast and yard broadcast in the car. In the model of "Dual Connect" which is usable in either right and left one earphone simple substance function this time, it is equipped with Dual Connect function newly. Music reproduction and a call are possible in either right and left one earphone simple substance. It is convenient at time when only one wants to use an earphone to grasp an outside sound properly without completely shutting off the environmental sound of the circumference. The connection after the second with the device which performed "Sync" where pairing after the second is easy function 1 degree pairing only opens the cover of the charge case, and pairing is equipped with done "Sync" function automatically. Because connection is completed when I attach it to an ear, it is reduced at wait time and is available in stress-free. It supports "Google Fast Pair" realizing smooth pairing "Google Fast Pair". When I open the earphone case which is in condition to have put earphone and bring it close to Android terminal, a notice appears to the terminal screen, and pairing completes it when I tap the notice. In addition, because pairing is possible with other Android devices with the same Google account smoothly, I reduce onerousness of the terminal operation and can enjoy music smartly. Because you cope with a sweat specifications (waterproofing function IPX7 correspondence) waterproofing function (IPX7 ※ 2) that is -proof, you can concentrate on and training even if you break an intense sweat while you exercise and can use the verge of the sudden rain for exercising a large quantity of sweat in peace. It is charge in Bluetooth version profile A2DP V1.3,AVRCP V1.5, HFP V1.7-adaptive codec SBC,AAC Unit 5.8mm diameter driver frequency properties 20Hz -20kHz sound pressure level 97dB/mW impedance 16 Ω weight right and left for each approximately 6.8 g charge case approximately 63.5 g waterproofing function IPX7 charge time for 5.0: Approximately two hours music reproduction: Cable for up to approximately six time (available approximately 18 hours greatest by the connection with the charge case) accessories charge, ear tip 3 size (XS, S, M), stabilizer (XS, S, M) with the wing ※Small size wearing finished, charge-response earphone case, "Map My Run" premium membership one year