|Feature||LED Display & 2200mAh Powerbank For Phone Charging & Touch Control|
|Waterproof Level||IPX 7 Waterproof|
|Packaging||Color boxes 1pc/retail Package|
|Sample||Accept small sample order|
|Function||Auto connect after startup & Support Single Ear Use|
|Order Lead time||10~20days|
|Use for||For any smart phone|
|CUSTOM||Accept custom logo and print, packaging|
|More Feature||Bluetooth version: V5.0+EDR Transmission distance: 10 meters
Use time: 5 hours Standby time: 200 hours
Charging time: 1.5 hours Battery capacity: 300mAh lithium battery
Headphone speaker: 40mm headphone impedance:
Which wireless Bluetooth headset headset is better?
1. Recognize the classification. Purchase on demand 1. Closed, open and semi-open earphones currently on the market can be divided into closed, open and semi-open according to their shape. The so-called closed earphone means to wrap your ears with its own soft sound pad, so that the ears are completely covered. This type of earphone has a large sound pad, so it is also larger. With a sound pad, it can be free from external noise interference. Open earphones are currently the more popular earphone styles. The feature of this type of model is the use of sponge-like microporous foamed plastic to make sound-transmitting ear pads. It is small in size and comfortable to wear, and no thick soft sound pad is used. In terms of sound quality, its low frequency loss is relatively large, but the overall effect is still good. Semi-open earphones are a new type of earphone that combines the advantages of closed and open earphones. This type of earphone uses a multi-diaphragm structure. It has many characteristics such as full and thick low-frequency description, bright and natural high-frequency description, and clear levels. This kind of earphone is widely used in many higher-end earphones. In fact, whether it is closed, open or semi-open earphones, the key is to see which one you prefer. In terms of office applications, semi-open earphones may be better, because these kinds of earphones look more fashionable and More importantly, the sound quality is clearer. For more users to come to the book, the terminology introduced above may be a bit obscure, and it is difficult to remember accurately when purchasing. In fact, we have another purchase category: headwear or earplugs. Headphones are mostly closed structure, so it is not convenient to carry, but its music expression is very strong, allowing people to enjoy the beauty of music. This type of headset is made very sturdy, so it is very suitable for use in the home or office. In order to cooperate with the voice interface, most of them also have a microphone. The earplug type is mainly used for traveling and listening to music because of its small size. This type of headset is mainly used for CD player, MP3 player, and MD. Its sound quality is good, and the sound interaction is strong, but its anti-interference ability is very weak and its function is not strong. Earphones can be divided into electric type and capacitive type according to the manufacturing principle. Electric (also known as moving coil) earphones have the characteristics of simple structure, stable sound quality, high endurance, and high sensitivity. Capacitive (also called electrostatic) earphones have the advantages of good sound quality and bandwidth, but their structure is complicated and difficult to manufacture, so few manufacturers make such earphones. Nowadays, stereo headsets using this model are rarely seen on the market. 2. Tips for buying earphones 1. Type Generally speaking, electric earphones have the characteristics of stable sound quality, simple structure, and low price, which are suitable for ordinary people to choose; while capacitive earphones have the characteristics of good sound quality and bandwidth, but The price is higher and suitable for enthusiasts. 2. Appearance Because it needs to be worn for a long time, the headset should have very soft and comfortable ear cushions and a headband with very low pressure. As for whether to use earbuds or covered earphones, it depends on the specific situation. It is impossible to cover your ears with a big fully covered earphone in a hot day. 3. Indicators You can learn about the performance indicators in the manual. The general requirements are: 20Hz～20kHz frequency range, sensitivity greater than 94dB/mW, maximum power ≥100mW, harmonic distortion less than 0.5% and so on. 4. Appearance Judging from the appearance, better earphones have a smooth appearance, fine workmanship, and excellent hand feeling. They should not have the rough feeling of using inferior plastics. In addition, the wire diameter of the earphone lead is relatively thick, soft and not hard. The plug is required to be neat and tidy without burrs, and the plating layer is smooth and even. Don’t buy if you don’t meet these conditions. 5. Audition There is so much mentioned above, but the most important thing is to audition in person. This is the most critical link. When auditioning, try to choose a better program source to audition, don’t use that inferior sound source, because it is impossible to hear the good and the bad. The specific situation can only be listened carefully with your ears, and you will know who is good and who is bad.