Raptas Ultra Long Music Play Time Mp4 Player and K1 Mini Bluetooth V4.1 Stealth Earbud for Android/iOS Devices Redmi, Honor, Xiaomi, iPhone and Android Smartphones 2nd mp4 player Portable Mp3 Mp4 player, video player, music player, media player, audio player with photo viewer, E-book reader, voice recorder, games and movies. digital record function, flash disk storage function, E-book function, support text file. 32GB SD/TF Supported Features: ⇒2nd mp4 inspire you to listen music on it and it is very easy to play music having many functions which you can set by your choice like touch the key to play the songs then you can run this program smoothly without selecting one after other for this just make a playlist and add your favorite songs in it to play then you can enjoy your work without any disturbance. Specification:  Built-in polymer Lithium battery A-B repeat function With FM radio stereo radio Built-in loudspeaker (optional) Supports audio formats: MP3 player, WMA, WMV and WAV Supports video formats: 3GP, MP4 player, AVI  K1 Bluetooth Headset Mini Wireless Bluetooth 4.0 Stereo In-Ear Headset, we can talk, listening to music Built-in DSP audio processing system, can be a very good eliminate Noise and echo, to ensure clear communication, and music.Small and light, stealth design. Specification:  Bluetooth Version: 4.1 High-speed transmission range (10Meters) Compatibility: IOS, Android, Windows Charging Time: Fully charge in just 3 hours Battery Capacity: 150MAH lithium polymer battery Talk Time: up to 4 hours Music Playtime: up to 5 hours Standby Time: up to 45 days  Feature:  Play/Pause: Press button once Answer/Hang up Phone Call/To Broadcast: Press button once Reject Phone Call: Long press button for 2-3 seconds