8/16/32/64GB INTERNAL MEMORY + MICRO SD CARD SLOT: 8/1632/64GB internal storage plus external storage of up to 128GB using a micro SD card means that you can store 136GB of songs, audio, photos, video and e-books (136GB allows you to store more than 8000 songs). Connect the device to your computer and use the USB cable included to transfer data. Supports external micro SD cards and micro TF cards of 32GB 64GB up to 128GB (NOT INCLUDED). BLUETOOTH 4.0 FOR SIMPLE WIRELESS CONNECTION: The is equipped with Bluetooth 4.0 for simple, stable and low-power consumption Bluetooth connectivity with a range of up to 10 metres. Simply pair with your Bluetooth headphones, earphones or external speaker to play audio from the device . Works in both wireless and wired modes - wired headphones (with built-in FM radio tuner aerial) are included for wired listening and FM radio. COMPACT, LIGHTWEIGHT AND PORTABLE:You can clip the to your sports gear, belt, pocket or bag and you'll barely notice it's there! Perfect for running, jogging, and walking, the is the ideal music player to accompany you on your run - it would also make a great gift for both adults and kids! With a built-in pedometer, the device can also record your steps as you walk or run. 6+ hours of battery life with wired headphones and bluetooth. ADDITIONAL FEATURES - FM RADIO, PHOTOS, EBOOK READER, RECORDER AND PEDOMETER: Use the built-in FM radio, Ebook, Recorder and Pedometer apps you can listen to radio on the go, view and store photos, read an ebook on the train , record voice notes, meetings or songs, and record your steps to help you meet your daily or weekly steps goal. Product Features: Music playback: support MP3, WAV and other playback Recording support: FM MIC recording, format support MP3 WAV Image browsing support: BMP JPG format browsing Video format support: MP4 format (need to be converted on PC through the replacement tool) FM Radio Support Advanced: Included (Recently Read Books, Markup, Autobrowse) Day/Night Mode System support: WINDOWSXP/VISTA/WINDOW8 Recording format: MP3/WAV Document text reading support Support 48 languages Support bluetooth receiving and sending Size: 90.5MM*39.5MM*10MM Net weight about 31g Bluetooth: 4.0 supports bidirectional transmission