1-Bluetooth automatic memory connection audio playback, compatible with 99% of smart phones and tablets. The operation is simpler and the connection is more convenient.2- The speaker has 8 GB of memory, 19 speakers, 15 language translations; combined and single modes are available. To listen to audio and all translations together, press MODE button, for single player mode, press again.3-APP control, bluetooth speakers and MP3 players: bluetooth speakers equipped with advanced technology are easy to pair. Simple operation, you can experience high-definition stereo. If you want to listen to music, you can listen to music through the controls connected to the phone app. It is also very convenient to learn the .4- With bluetooth, with led lights, you can download bluetooth islamic music and play it. Support the entire chapter of the Bible, or read the entire page. There are three speech speeds: fast, slow, and normal.5-Using low voltage USB charging and energy saving LED bulbs, even if used for a long time, the bulbs can stay cool and emit soft light without hurting your eyes. Built-in FM radio mode, reading mode, Bluetooth mode, cold / warm light, colorful light mode, TF card, rechargeable battery can be in your computer / mobile power or charging adapter, etc.