Features： 1. Adopt bluetooth 5.1 version,support 10 meters efficient and stable transmission; 2. Support wireless bluetooth /AUX/ TF card/U disk 4 major playback modes ant the same time,it is meet your different needs; 3. Auto off enjoy a good night’s sleep,set the listening time as you like; 4. Form day to night,Large capacity and long battery life; 5. Two-channel high-fidelity sound quality, restore the real natural environment sound,relax and fall asleep in the tranquility of white noise; 6. 8 natural sounds, deep sleep guardian; 7. Noise reduction artifact from nature,Pure physical effect ear transmission;
