I'm selling these because I don't plan to use them. I charged them to full and confirmed they work. In terms of sound quality, the bass is heavy, thick, and impactful. Includes the charging case & earbuds. Charges via USB: Type-C Please note that the case has minor scratches. - Brand: Prilech - Model Name: D28-TWS - Bluetooth Version: V5.0+EDR - Wireless Frequency: 2.4GHz - Support Profiles: HSP/HFP/A2DP/AVRCP - Charging Time: Approximately 1 hour - Standby Time: Approximately 120 hours - Speaker Impedance: 4Ω/MM12 - Operating Temperature Range: -10〜50℃ - Talk Time: Approximately 5-6 hours - Charging Voltage: 5V ■ No need to ask before buying, instant purchase welcome ■ No price reduction ■ Free shipping ■ Ships within 24 hours Thank you for looking.