New, Unused MS-TW33 Wireless Earphones Bluetooth M-SOUNDS [Anonymous Delivery] 4985115970522 【Specifications】 ● Maximum Usage Time ・Music Playback: Approximately 8 hours *Playback time is reduced by about 30% when using ANC/External Sound Capture/Gaming function. ・Call: Approximately 5 hours ・Standby: Up to 100 hours ・With charging case: Maximum music playback approximately 27 hours ● Charging Time ・Charging Case: Approximately 2 hours ・Earphones: Approximately 2 hours ● Built-in Battery Capacity ・Charging Case Battery Capacity: 400mAh, Battery Density: 352WH/L ・Earphone Battery Capacity: 45mAh ● Driver Unit: Dynamic Type Φ6mm ● Input Impedance: 32Ω ● Playback Frequency: 20Hz-20000Hz ■ Equipped with High-Performance Hybrid ANC By combining a unique ergonomic design that enhances the fit with the ear and reduces physical noise (passive noise isolation) with a "high-performance hybrid ANC" that uses both feedforward and feedback methods, unwanted ambient noise is significantly reduced. ■ Surprisingly Lightweight Despite Being Equipped with ANC Due to the features of hybrid ANC earphones, the main body weight tends to be heavy, which leads to "poor appearance when worn" and "fatigue during long-term use." However, as a result of pursuing a lightweight design, the MS-TW33 has achieved a weight of only about 4g per ear, making you feel like you're not even wearing them. There are minor scratches on the case from storage, so please refrain from purchasing if you are sensitive to such details.