Feature:1. [Hands Free Calling] The microphone of the BT earpiece is designed for talking, reducing noise from other places, you can answer incoming calls and free your hands. Designed with a mute function, you can turn on the mute mode without taking out your phone.2. [BT 5.1 Technology] Single ear headset uses advanced BT 5.1 with faster transmission speed, connection stability and longer range, providing clearer music playback and conversation without the worry of signal loss or music loss.3. [Long Standby] BT earphone has built in premium battery that charges using the TYPE C charging cable, with a full charge of about 1.5 hours and up to 12 hours of continuous talk. With the charging case with LED display can up to 180 hours of ultra long standby.4. [Dual MIC Noise Cancellation] Wireless earpiece microphone with intelligent noise cancellation processing, giving you a clear sound quality experience. With multi functional buttons, one touch control, convenient and quick. Small size of the earpiece, easy to carry.5. [Comfortable To Wear] Ear hook design headphone, based on the line design of the ear wire, fits the shape of ear. Lightweight, reduce pain and fatigue. Headphones can be rotated 180 degrees, ear hook can be rotated 360 degrees, suitable for left and right ears.Specification:Item Type: BT EarpieceMain Body Material: ABSProduct Model: YYK 530BT Version: 5.1Wireless Frequency: 2.402GHz - 2.480GHzTransmission Distance: 10m/32.8ftInput Voltage, Current: 5V 1ACharging Port: TYPE CTalking Time: 10 to 12 HoursMusic Playback Time: 10 to 12 HoursStandby Time: 180 HoursEarphone Charging Time: About 1.5 HoursCharging Case Charging Time: About 1.5 HoursBuilt in Battery: Lithium Ion BatteryEarphone Battery Capacity: 120mAhCharging Case Battery Capacity: 800mAhSupport BT: AVRCP, A2DP, HFP, HSP, EDR.Package List:1 x BT Earpiece1 x Charging Case1 x Eartip Cover1 x USB Charging Cable1 x English and Chinese Manual