JY-78 Bluetooth Speaker with Sleep White Noise Support Memory Card U-disk Features： 1. Adopt bluetooth 5.1 version,support 10 meters efficient and stable transmission; 2. Support wireless bluetooth AUX TF cardU 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; Specifications： 1. Bluetooth version: V5.1 2. Transmit range: ≤10m 3. Noise-signal ratio: ≥80db 4. Battery: 1500mAh 5. Speak Size: Ф45mm 3ohm 3W 6. Output: 3W x 2 7. Dimensions: 20x5.8x6.8cm 8. Packing size: 20.8x7.9x6.4cm 9. N.WG.W: 466g612g Package Included - Bluetooth speaker x1 - Charging cable x1 - User Manual x1