Caution: color: we send according to the color of the first picture, in the package: if the quantity is not stated in the description, we will shlp the item according to the quantity and model in the title. 350Mah mini portable solar charging mp3 e book bible reader book reader 4g mini book reader| mp3 player 350mah mini portable solar charging bible reader book reader features: 1. Small, light and easy to carry. 2. Intelligent memory point reading, easy to listen to, three groups of indicators display play, charging, read disk , convenient, affordable and durable. 3. Solar charging, built-in monocrystalline silicon solar, charge conversion rate of 78%, 6 hours fully charged. 4. Large volume, sound adjustable. 5. File selection previous song, next song previous chapter, next chapter fast forward, rewind pause, playback . Support 8 folders switching. 6. Built-in 4g capacity. 7. The product is encrypted and the customer cannot copy the file themselves. 8. Built-in recyclable, polymer lithium battery 350mah, long standby for more than 15 hours. 9. Suitable for the crowd bible listeners. Specification: material: abs battery: 350mah size: about 104*58*8mm / 4.09*2.28*0.31In suitable for the crowd: bible listeners package list: 1 * host 1 * data cable 1 * headset 1 * lanyard 1 * manual