■ Description I received this from someone else, but I have no use for it, so I am selling it. It is new, unused, and unopened. Please consider this item, understanding that it has been stored at home. ■ Specifications Product Name: HIDISC True Wireless Earphones HDBT38BK Model Number: HDBT38BK JAN Code: 4984279642672 Color: Black Bluetooth: Version: 5.0 Supported Profiles: HFP, HSP, A2DP Supported Codecs: SBC, AAC Output: class 2 Maximum Communication Distance: 10m Earphone Battery Capacity: 40mA Earphone Charging Voltage: 3.7V Earphone Charging Time: Approximately 2 hours Charging Case Battery Capacity: 300mA Charging Case Voltage: 5V Charging Case Charging Time: Approximately 2 hours Number of Earphone Charges with Charging Case: Approximately 3-4 times Music Playback Time: 3-4 hours Talk Time: 3-4 hours Standby Time: 400 hours Earphone Sensitivity: 105dB±3dB Impedance: 16Ω±15% Earphone Frequency: 20Hz-20 KHz Charging Case Dimensions: Approximately 63x41x29mm Earphone Dimensions: Approximately 28x15x22mm Earphone Weight (Single): Approximately 8g Total Weight: Approximately 35g