1. The VC Bluetooth wireless headset has a 50mah battery capacity and a 2400mah battery compartment. If the headset is used alone, the battery life can reach 8-10 hours (depending on the use environment). If the headset is used with a charging case, the cumulative battery life is up to 160 hours. This is equivalent to not needingFind a patch board to charge for a week, perfect for outdoor travel. At the same time, the Bluetooth headset is equipped with 3mm silicone earplugs, which is very comfortable to wear and is not easy to fall off.
2, the first: Percussion x6 neck hanging Bluetooth headset Percussion X6 Bluetooth headset not only has a great advantage in performance and price, but also has a strong technical team support. In 2015, Lenovo reached a long-term strategic cooperation with the percussion brand, and Lenovo invested 30 million yuan in the percussion brand Bluetooth headset, which is also a landmark event for Lenovo to enter the audio field.
3, the first: percussion VC intoEar Bluetooth wireless headphone Percussion is an independent high-end audio and video brand invested by Lenovo. In 2015, Percussive brand received 30 million yuan of capital injection from Lenovo. With a strong supply chain system and quality assurance, it has become an independent high-end audio-visual brand invested by Lenovo. When it comes to endurance, the most important thing is the percussion VC Bluetooth in-ear wireless headphones.
At present, most fingerprint locks on the market do not have moisture-proof measures, encounter continuous wet weather, fingerprintSome parts of the lock may short circuit, resulting in failure. When purchasing a fingerprint lock, the public should consult the business whether there are moisture-proof measures. The fingerprint head used in the industry is divided into three types according to industry terms: biometric fingerprint head, optical fingerprint head, and pseudo-biometric fingerprint head.
1, no yo, the reason why the small black box can be opened in seconds: The small black box will produce a strong electromagnetic pulse, which will cause the chip to crash and restart after it is close to the smart lock chip, and some wisdomEnable lock By default, the lock is automatically unlocked after restart. Generally, the module that will be opened is the smart lock without a stable voltage. Some won't be opened.
2, the smart black box refers to the Tesla coil that can be powered. The unlocking principle of the little black box is actually similar to electromagnetic interference. It is understood that many smart lock manufacturers on the market are using this as a publicity highlight to take advantage of the price increase, which is actually very bad behavior. As a durable consumer electronics, electromagnetic interference protection must be taken into account at the beginning of the involvement, otherwise it is not a qualified product.
position. Interference use reset can be divided into two different situations: the system restarts, automatically restores to the state before the interference after the restart, the previously set parameters remain unchanged, and the smart lock cannot be opened.
2, electromagnetic pulse generator commonly known as the small black box, it can produce a strong electromagnetic pulse, coupled with the intelligent lock circuit. A surge current is generated in the circuit. This surge current can burn the electronic components in the smart lock, causing the smart lock machine to fail. With any luck, the lock will open.
3, small black box unlocking principle: at present, the so-called "small black box" device that can crack the smart door lock is actually using a Tesla coilIt is a high frequency series resonant transformer with distributed parameters that can produce strong electronic pulses and is a Nemesis for most metal and electronic devices. The unlocking principle of this Tesla coil originated from the early walkie-talkie unlocking principle. Tesla coils are currently widely used in military electronic jamming warfare, but the electromagnetic attacks used by the military are extremely powerful.
4, a lock manufacturing professional said that this small black box is the use of transformers to boost the voltage to form a strong magnetic pulse interference lock capacitor components, so that the automatic lock operation cracked. Another electrical automation professional said it was the Tesla coil that used electromagnetic interference in the lockThe motor drive board enables the electromagnetic induction to bypass the detection of the intelligent lock and directly acts on the part of the motor drive to open the lock.
The little square black box clipped to the collar is a clip-on microphone. According to the query of relevant public information: the feature of the collar microphone is easy to use, and it can be placed directly on the collar when used, without the need to hold it like a traditional microphone.
The little box you wear to shoot video is a motion camera. The action camera is smaller and more portable than the general camera, and has the characteristics of waterproof and dust-proof. In addition, the action camera is stable in extreme environmentsIt is more qualitative than ordinary cameras, such as in mountain biking, using a sports camera does not have to worry about camera shaking or rain.
2, to achieve high-fidelity sound quality performance, the sound quality of Neo2 in South Carolina has been unanimously recognized by the gods of the headset industry, and the reputation has been very good.
3, NO2: Cleer ARC II open Bluetooth headset The sound performance is open, low frequency diving depth, providing 8 27h endurance time with adjustable rotating ear mount design, through the curved rotating silicone ear mount to adapt to most ear types, find the Angle suitable for their own wear, wear more stable, comfort is poorA little, because the headset is large, long time wearing will have discomfort.