Specification:Optional Colors: Black， White， Blue， Red， Black-White， Red-Blue.Wearing Type: In-earNet Weight (g): 4.15gDimensions (mm): 25mm*15mm*9mmMicrophone: YesButton Control: SupportBluetooth Version: 4.1Transmission Distance: 10mCharging Type: DC 5VNoise Canceling:  CVC6.0Support Protocol : HFP HSP AVRCPCharging Box Capacity: 2000mAhPlay Time: 2-2.5HCharging Time: 30min<br />Features:1. Multi-points connection: can connect to two device at the same time.2. Display battery level on IOS system.3. One button， but multi-function operation.4. Noise canceling function， enjoy a clear talk and music.5. In-ear stereo sound. Heavy bass effect.6. Can be a 2000mAh emergency power bank， charge your phone. Also charge the earphones.7. You can wear it when driving， working， cycling， traveling.<br />Package Includes:1 x Bluetooth Earbuds1 x Storage Box1 x Charging Cable4 x Earbuds1 x User Manual