Opened, but only used for testing functionality. All accessories are included. I purchased this on Makuake, but I bought another pair of earphones before it arrived, so I'm selling this to someone who can use it. Everything shown in the photos is what will be sent. Makuake Project Page: https://www.makuake.com/project/zenchord_1/ - Brand: ZENCHORD - Model Name: Zenchord 1 - Features: AI Recorder Function - Bluetooth Version: Bluetooth 5.0 - Battery Capacity: 500mAh - Supported Codecs: LDAC, Hi-Res Audio - Charging Method: USB Type-C - Weight: Approximately 100g Retail Price: 26,980 yen Color: Dark Gray