Instant purchase OK. Please refrain from purchasing if you haven't read the profile and product description. A follower discount of 100 yen is available. I cannot accommodate further price negotiations. Brand new, unopened. I have not checked the contents. No returns or exchanges to prevent trouble. Sennheiser MOMENTUM 4 Wireless Bluetooth Headphones - Black - High-performance drivers, noise cancellation, 60-hour battery life, touch panel, low latency, aptX Adaptive, multi-point