Reasons to purchase Because of the recent iron-clad iron, the gym's music is really unbelievable, so you often bring your own headphones. Before there is an old Sony sbh50 Bluetooth headset, in fact, the sound quality is also so-so, but after all, is divided into two parts of the receiver and headphones, coupled with the headset cable is relatively short, so it is more trouble, do not know after putting on compression clothing Where the receiver is clamped, it is often pulled. In fact, you can also use your own for many years of service as a headset, but the result, unexpectedly, and sweeping machine after a love-hate entanglement completely scrapped. So plan to buy a pair of Bluetooth headsets that have no line at all. Too expensive not to plan, after all, wearing Tiida, in case of bad or bad, after all, the gym is also a high-risk area (do not ask me why, I will never tell you I have abolished a cell phone!). Actually, he did not seriously select one and chose one randomly. He felt that he was almost on the line. Editors say certain links Selbel (dellable) D900S upgraded version of the real wireless Bluetooth headset ear wireless sports smart ear headphones black 399 yuan Jingdong to buy Appearance Gallery Packaging front The back of the package Open the tray Family portrait of something inside The headset is charged in the box, and the left and right headphones are independent. The headset has silicone plugs installed, there are two other plugs. The black two-ringed silicone rope is used to cover the two headphones to prevent it from falling out. Press the button on the front of the box and the blue light flashes to show the charge and the display starts charging. The box is covered with magnets to ensure it does not accidentally open. Charge the box when it is closed. At the same time, the indicator light of the headset itself will flash red. The indicator on the headset will turn red and the indicator light will turn off automatically when charging starts. Then I have a very heart-felt discovery........ good, good, and good... Inside the upper cover there is a fingerprint .. there is a fingerprint ... a fingerprint ..... a fingerprint ........ a pattern ..... ... I first declare that this is absolutely not mine! But also can not wipe! experience feelings First from the outside: The workmanship of the box was so-so, and when he opened it felt a little dust inside. Cover hinge section, handling a little hair, slightly pickpocket; Box button section, charging port is OK; The headset itself is pretty big, it's a little sloppy workmanship, the keys are loose, and it's moving and shaking. The earphones of the earphone's silicone ear part feels comfortable, the size is elastic, the feeling is not very stable, certainly will not fall; There is no card position or fixed angle between the silicone plug and the earphone body, both of which can adjust the angle; If the angle is not adjusted properly, there will be a leakage sound or a feeling of falling off at any time; The box comes with a battery. After putting the headset, it will charge the headset. This is very convenient. Specific use: The operation is simple, the left ear canal call operation, the right ear canal music playback; The indicator light is still very clear, with red and blue colors. Sound quality: Treble, even if you don't expect too much, you can only say yes; The vocals, the midrange part can be restored; The bass is a bit confusing; In terms of sound field, can I say no? to sum up The advantage is that it is more convenient to use and charge, but the feeling of wearing is generally good, and the sound quality is also considered to be the right price. The overall workmanship is a bit rough. Continue to use the period of time to see if you can not make it, you can use when lying down to watch the drama, after all, can be used alone, there is no line. This is the biggest advantage.