I'm selling these because I bought something else, so I've only used them for about a month and they're in good condition. They have been disinfected with alcohol. Included: Instruction manual, ear tips ■ Product Name: True Wireless Earphones with Low Latency Mode ■ Model Number: JN-DQTWSS2 ■ Bluetooth Standard: Ver5.3 ■ Output: class2 ■ Operating Range: 10m ■ Frequency: 2.4GHz band (2402MHz～2480NHz) ■ Bluetooth Profiles: HFP, A2DP, AVRCP ■ Supported Codecs: SBC/AAC ■ Connector (Charging Case): USB Type-C ■ Power: DC5V (USB power supply) ■ Battery (Earphones): Lithium polymer battery L/R 35mAh each ■ Battery (Charging Case): Lithium polymer battery 300mAh ■ Playback Time (Earphones): Up to 6 hours (music playback) ■ Playback Time (Earphones + Charging Case): Approximately 21 hours (music playback) ■ Charging Time (Charging Case): Approximately 2 hours ■ Charging Time (Earphones): Approximately 2 hours ■ Headphone Output: Max 4mW ■ External Dimensions (Earphones): W33 x D23 x 21 (mm) ■ External Dimensions (Charging Case): W60 x D25 x 50 (mm) ■ Weight (Earphones): Approximately 3.5g each ■ Weight (Charging Case): Approximately 33g ■ Impedance: 32Ω ■ Multipoint/Multipairing: Multipairing only ■ Drive Method: Dynamic ■ Operating Humidity Range: 25%～80% ■ Operating Temperature Range: 5℃～40℃ ■ Waterproof Performance: IPX5 ■ Country of Origin: China