Classification of children's story machine
One: classification by screen: whether there is a display screen or not. The ones with display screen can be subdivided into two types, namely LED display screen and LCD display screen. The LED display screen is more suitable for children, will not be broken, is simple to operate and is very safe for children. Second, according to the storage method: it can be divided into solidified content and downloadable content, and the solidified content cannot be updated, because with the growth of children, the single content is not only boring, but also may not be suitable for the growth needs of children, so the solidified content belongs to the lowest end (the kind that is said to have left the factory with hundreds of stories basically belongs to this category), and the downloadable content can be subdivided into two types, one is flash memory and the other is TF card. Flash flash refers to the memory fixed on the circuit board and cannot be expanded. For example, if you buy a suitable 1G, it will always have this capacity. TF card is what we often call a mobile phone card, which can be expanded and upgraded at any time. Generally speaking, TF card is the most cost-effective, because even if story machine is not used, this card still has residual use value. Three: classified by batteries: ordinary batteries, rechargeable lithium batteries, and a dual-channel design, which can use both ordinary batteries and rechargeable lithium batteries. Lithium batteries can also be subdivided into two types: one is lithium-ion batteries and the other is lithium polymer batteries. Lithium-ion batteries are often considered to be in danger of explosion. Lithium polymer battery is the latest battery and will not explode. Even if there is a violent collision, it will expand slowly after being used for a long time, so this kind of battery is very useful for baby electronic products. Ordinary batteries, rechargeable lithium batteries and children's MP3 with dual-channel design are undoubtedly the most cost-effective, because ordinary batteries need to be replaced frequently, which undoubtedly increases the cost. The average life of rechargeable lithium batteries is 500 times. After a long time, you can't replace it yourself. You need to return to the factory for maintenance. And the children's MP3 with dual-channel design solves this problem. After the life of rechargeable battery is over, you can open the back cover and replace it with a new rechargeable lithium battery, or you can continue to use ordinary batteries to extend the life of children's MP3 to the greatest extent.
I suggest you consider story machine, which is a pig, unbreakable LED color screen, TF card storage, dual-channel power supply design, pure sound quality and high quality.