I am an Chinese seller,providing customers with high-quality and low-cost products. The types of products we sell include Home & Kitchen,Health & Beauty,Fashion Clothing,Electronics,Watches & Jewelry,and so on. We keep up with the most popular fashion trends. If you like our products, please follow us and become our followers and fans. Sincerely at your service .Please feel free to contact us if you have any questions.Specifications:180 days long standby time is convenient for you use.270 degree rotatable ear cap design, free to adjust the angle, left and right ears can be worn freely, bringing a comfortable and intimate experience.You can rotate ear hooks to adjust a more suitable angle, not easy to fall off and lose, and more suitable for long-term wearing.The body of earphone is made of light ABS material, weighing only 10g, which is close to a senseless wearing experience, a good news for heavy earphone users.150mAh large-capacity battery to meet longer battery life.The fine craftsmanship is closely integrated to prevent sweat and splashing water from entering the earphone.The sealed design of the charging port can better prevent the components from being corroded, effectively reducing the failure rate and extending the service life.The dedicated pair of earphones matched with the main unit instantly change into two ears, the appearance is more stunning, the wearing is more comfortable, the sound quality is better, and the sound range is wider.High-definition microphone with CVC6.0+DSP audio processing double noise reduction, the sound is clear and natural, just like a face-to-face conversation.Item Name: EarphoneMaterial: ABSBluetooth Version: 4.1Bluetooth Chip: CSR8645Frequency: 20Hz-20KHzSpeaker Diameter: 10mmBluetooth Distance: About 10 MetersPower By: Rechargeable Battery (Included)Music Playback Time: 10 HoursTalk Time: 8 HoursCharging Time: 1-2 HoursApproximate Standby Time: 250 HoursSupport Protocol: HFP/HSP/A2DP/AVRCP/APT-XFeatures: Portable, Convenient, DurableSize: 4cm x 3.5cm x 2.5cm/1.57" x 1.38" x 0.98" (Approx.)Notes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Earphone1 x USB Cable