Premium Bass Sound: The Peralng mini ear headphones provides natural sound, deep bass and clear treble for your music. The noise cancelling and echo elimination technology could ensure the smooth and clear sound. Comfortable For Your Sport: The flexible hooks of Peralng wireless bluetooth Earphones ensure that your ears are comfortable. The soft silicone ear pieces wont hurt the inside of your ears even during a long sessions of music or workout. Up to 7 Hours Play Lasting Time: the capacity of 55mAh per ear allows a play time up to 7 hours and 175 hours of standby. Yet you need just about 1.5 hours to recharge it. No matter how used for men, women, girls, kids, or when you play in outdoor, universal bluetooth in-ear headphones can be qualified for your requirement. Multipoint Connection Design: The Peralng headphones are available to connect 2 devices at the same time. You may listen to music from your tablet without missing the calls from your cellphone. Charging Your Device: 1. Connect the charger to the charging socket on the headset. 2.During charging, the indiicator light will turn red. 3.When the headset is fully charged, the red indicator light changes to blue Unplug the charger from the head set. All-round 24H Sale Service: The professional material insure the quality of item. Please contact our Enlewlth LLC Customer Service or send email to our company's mailbox, we will give you a satisfied solution in 24 hours. Item Name: Bluetooth Neckband Headphones; Main Material: Silicone, Electronic Parts; Main Color: Black, Red; Wireless Profile: HFP1.6, HSP1.2, AVRCP1.4, A2DP1.2; Bluetooth Versions: Support V4.1 + EDR; Call / Play Duration: About 7 Hours; Standby Time: 175 Hours; Effective Distance: 10M / 32.8Ft(1-in-2); Charging Time: About 1.5 Hours; Battery Capcity: Rechargeable 100mAH Li Battery; Waterproof/Sweatproof Type: IPX4; Box Size: 11.1 x 9.0 x 4.5cm / 4.37" x 3.54" x 1.77"(L * W * H); Weight: 98g / 3.46oz; Package Include: 1 x Bluetooth Neckband Headphones; 1 x USB Cable, 1 x Manual, 1 x Gift Box.