"Used - Excellent Condition (Grade A) - The item is in a pristine, like-new condition. It is fully functional and has been professionally inspected and cleaned. The item may not come with its original packaging and contains all OEM accessories. Package Includes: Wireless Earphone, Micro USB Cable, Earpiece(S/M/L), Operation manual Specifications Frequency Response: 20Hz - 20KHz Talking Time: Approx. 4H at 50% volume Splash Proof: IPX4 Charging Way: USB DC5V Bluetooth Specifications: Ver. 4.2 Bluetooth Protocol Support: A2DP, AVRCP, HFP, HSP Service Distance: Up to 8m Connection: Two Bluetooth Devices at the same time Phone: Receiving and Answering the Call"