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.File selection (previous song, next song) (previous chapter, next chapter) (fast forward, rewind) (pause, playback). Support 8 folders switching. 5.Built?in recyclable, polymer lithium battery 350mah, long standby for more than 15 hours. specification: 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. : 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 PackageList:1 * Host 1 * Data Cable 1 * Headset 1 * Lanyard 1 * Manual