Radius fully wireless Bluetooth earphones. Opened, unused. I purchased these but haven't used them, and it seems unlikely I will in the future. The following accessories are not included: Ear tips (S, M, L) / Charging cable (USB-C to USB-A) / Instruction manual (Warranty card) It appears only the S ear tips are set. ■ Specifications ■ 【Communication Specifications】 Communication method: Bluetooth Standard Ver5.3 Output: Bluetooth Standard Power Class2 Maximum communication distance: Approximately 10m in a clear line of sight *Communication distance is an estimate. The communication distance may vary depending on the surrounding environment. Supported Bluetooth profiles: A2DP/AVRCP/HFP/HSP Content protection method: SCMS-T Supported codecs: SBC, AAC Transmission band: 20Hz-20000Hz Battery life: Approximately 3.5 hours With charging case: Approximately 17.5 hours Continuous standby time: Approximately 45 hours Charging time: Earphones: Approximately 1.5 hours / Charging case + earphones: Approximately 2 hours 【Earphone Specifications】 Type: Dynamic Driver: Φ6.1mm Output sound pressure level: 90±4dB Playback frequency band: 20Hz 〜 20000Hz Impedance: 16Ω Waterproof standard: IPX4