1, the phase changes with frequency phenomenon, the unit is decibels. As long as you remember: the smaller the decibel value, the flatter the frequency response curve of the speaker, the smaller the distortion, and the more advanced the performance. As for the range of frequency response, in theory, the frequency response of 20 ~ 20000Hz is sufficient.
2, this Bluetooth speaker in the pronunciation unit mainly has two speakers, two speakers a diaphragm, two speaker phase hole,Two horns, two diaphragm and so on. In function, it is mainly divided into mini home Bluetooth speakers and outdoor sports Bluetooth speakers. Outdoor sports Bluetooth speaker Outdoor sports Bluetooth speaker for the Bluetooth speaker market upstarts.
3, therefore, when choosing a Bluetooth speaker, pay attention to its speaker detail design, the design of coaxial common point unit is a good choice, because it simultaneously integrates three kinds of high school bass sound effects, can present pure acoustic.
4, Bluetooth speaker, and professional audio equipment is different. This thing doesn't burn forever, it has an end, which is what we always say,The idea is the same. The speaker has a fixed input, such as 5V-1A, you use a charger higher than 1A to charge, and the speaker receives 1A, which is called adaptive charging to avoid damage caused by overelectricity.
2, although the fast charge head can support charging, but the Bluetooth headset does not have a fast charge setting, it is only to support five volts A five watt charging. But the fast charger can automatically match the power supply.
3, if the use is vivo mobile phone, mobile phone charger can be used to charge the Bluetooth speaker, if the Bluetooth speaker has its own charger, it is recommended to use the original charger to chargeThe experience will be better.
4, yes, but generally for the sake of insurance, it is best to use a charging treasure with a small current function to charge the charging cabin and Bluetooth headphones, or use the USB interface of the computer to connect the original data cable to charge, if there is an original charger it is better.
5, Yes. The battery used by the Elvis Bluetooth speaker is 3100 ma, and fast charging does not affect the service life of the battery, but also can speed up the charging rate, which can save time, so the Elvis Bluetooth speaker can be charged fast.
6, use the charging treasure to charge: connect the charging treasuremAh battery, OPPOReno7 has a 4500mAh large battery, and supports 60W fast charging, does not support wireless charging.
2, no, the speaker is not fast charging mode, can not use flash charger to charge him. The motherboard of the speaker will be burned out, so that the speaker can not normally use the Bluetooth wireless fast charging audio . Usually to charge the speaker, you must use its special charging cable, and a special plug, as long as it is not flash charging, other plugs can be used for him. Charging time should not be too long, too long, alsoIt'll burn out.
3, OPPO Reno7 standard charger specifications Bluetooth wireless fast charge audio : OPPO Reno7 support power of 60W super flash charge, does not support wireless charging. Note: Reno7 is compatible with SuperVOOC, VOOC 0, PD (9V/2A), QC (9V/2A) fast charging protocols. This answer applies to all OPPO models.