4.72 x 4.57 x 1.34 inches

Stereo Sound Quality:WATAHATIC Bluetooth earbuds come with 13mm vibrating diaphragm and HD rendering technology produce incredible sound quality with crystal crisp treble.Reproducing your music vividly. One Step Pairing: After first connection, these wireless earphones will connect with your device once you open the charging case, which is faster and more convenient.The paired device will automatically connect the next time you use it. 30Hours Battery Life: With headphone 40mAh capacity and charging bin 400mAh capacity,The earbuds lasts 5-6 hours for normal use, and the charging bin lasts 24 hours for 3-5 charges,which gives you excellent experience of long endurance.