Routine optionsSunrise and sunset settingsSound options58 sounds, plus additional sleep contentBedside lamp capability?Yes, but too dim to be usefulApp control?Yes, both iOS and AndroidSubscription tiers?Yes, Hatch+ membership ($3 a month) gets you more content and options
content editor that suggests optimizations for individual pages。业内人士推荐新收录的资料作为进阶阅读
，这一点在新收录的资料中也有详细论述
The company, which brands itself as Planet, operates a fleet of several hundred Earth-imaging satellites designed to record views of every landmass on Earth at least once per day. Its customers include think tanks, NGOs, academic institutions, news media, and commercial users in the agriculture, forestry, and energy industries, among others.，更多细节参见新收录的资料
Photo via Kevin Balluff/Flickr