Brand new, unopened Manufacturer: Anker Model Number: A3953N21 Product Name: Anker Soundcore Liberty 4 Color: Cloud White Retail Price: 14,990 yen (tax included) Manufacturer's Description: Delicate and Rich Sound: Equipped with Anker's proprietary driver "A.C.A.A 3.0" for delicate and rich sound quality, allowing you to hear even the finest sounds clearly. It also supports high-quality codec LDAC. 360° Sound Experience with 3D Audio: Processes sound sources in real-time with a unique algorithm, providing an immersive sound experience like being in a live venue or movie theater. It also features head-tracking that detects and follows head movements. Ultra Noise Cancelling 2.0: Anker's proprietary Ultra Noise Cancelling 2.0 automatically adjusts the strength of noise cancellation. It also features wind noise reduction. Health Monitoring: Heart rate monitoring, stress check, posture reminder, workout function, etc. are available. This product also supports IPX4 waterproof standard. Package Contents: Earphone main unit, charging case, ear tips (4 types), USB-C & USB-A cable, quick start guide, safety manual, product certified with technical standards mark (Frequency band: 2.40〜2.48GHz) True Wireless Earphones Earphones Bluetooth Bluetooth Active Noise Cancelling