Description: 5.2 chip: Upgraded 5.2 chip, provide a more stable connection, lower latency, faster paring and universal compatibility Design: clip, does not fit into the ear and comfortable to wear all day. LED display: LED digital display screen, real time understanding the power of the left and right earphones and the charging compartment Quality Sound: Built core high sensitive microphone, noise canceling technology, stereo, allowing you to your music, movies or phone calls without distraction, with Smart touch operation Comfortable: Lightweight, comfortable to wear. Suitable for sports, driving, office, running and workout. Specification: Material: ABS+Electronic Charging Case size: 7.8cmx2.5cmx4cm/3.07inchx0.98inchx1.57inch Earphones Capacity: 35mAh Charging Case Capacity 300mAh Charging Time: about 40 minutes Support Technology: A2 DP AVRCP HFP SDP SPP Package Includes: 1 Set Wireless Earphones Note: Please allow slightly errors due to manual measurement and different monitors.