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        Alibaba.com offers 5,229 dvr 4-channel products. About 13% of these are car black box, 6% are cctv system, and 1% are cctv dvr. 

A wide variety of dvr 4-channel options are available to you, such as night vision, waterproof, and loop recording. You can also choose from lcd, tft, and ips. As well as from 4", no screen, and 2.4". And whether dvr 4-channel is ce, or fcc. 

There are 5,229 dvr 4-channel suppliers, mainly located in Asia. The top supplying country or region is China, which supply 100% of dvr 4-channel respectively. 

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