Open-type, non-in-ear, comfortable and breathable without hurting the ears. TUP soft ear hook, no pain when worn for a long time. 30MM super large internal magnetic speaker, good sound quality and loud sound. Equipped with the latest Bluetooth 5.0+ low latency (0.05s) chip. The maximum volume of the hottest songs can be played continuously for more than 13 hours; normal use is about 28 hours. The is made of soft silicone material, comfortable and textured. RGB gradient breathing light, while showing personality, can also as a reminder when traveling at night. Walking, cycling, driving, exercising, while enjoying music, it does not affect the reception of external sounds, which is . Colour:Black Material:ABS Package Contents: 1 set * wireless earphones Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.