*****Upgraded Bluetooth 4.1 & HiFi
Sound Quality: player with Bluetooth 4.1 technology, faster and more stable performance to connect with your Bluetooth headphones and speaker within 10 meters. Professional noise reduction chip provide more clear sound, ensure high-qualified audio experience.
Audio format supported: MP3/ WMA/ APE / FLAC / WAV/ /DRM /
ACELP(NOTE: The Player is Bluetooth transmitter, not a receiver. It cannot pair with you phones and your car) *****40Hrs
Super Long Time Playing: Built-in 380mAh Lithium battery, up to 40 hours after 2 hours full charging via PC, charger, power band, etc. You can carry your favorite podcast or audio book anywhere! It can up to 40 hours play time with wired earphones and voice recording, 7 hours in Bluetooth mode and 10 hours with speaker. *****16GB Memory & Up to 128GB
Expandable: D50 player come with 16GB internal and expandable up to 128GB Micro SD Card ( SD Card Not Included), which can be also used as a USB flash drive to store you