【Product Details】 This is a CD with Japanese guidance using Hemi-Sync technology from the Monroe Institute. Title: Timeless Peace (永遠のやすらぎ / Timeless Peace) This is a very comfortable guided meditation that allows you to experience infinite silence and deep peace. It's a perfect album for when you want to reset yourself in the midst of stressful days. 【Important: About Condition】 I have used this for many years, so the package and case have scratches and stains, showing signs of use. This is by no means a "beautiful item," so please purchase only if you prioritize practicality. 【Operation Check & Cleaning】 I have confirmed that the sound plays without any problems until the end. Before shipping, I will clean it with a disinfectant sheet and clean the disc. 【What is Hemi-Sync?】 It is an acoustic technology that synchronizes the right and left brains by playing sounds of different frequencies from the left and right ears, leading to a deep meditative state. Even beginners can easily enjoy deep relaxation. *We recommend listening with stereo headphones or earphones. 【Shipping & Other】 Instant purchase is OK. We will ship within 2 days via Yu-Yu Mercari delivery (anonymous shipping). Bulk purchases are welcome. We are also listing other Hemi-Sync CDs sequentially. If you purchase multiple items, we will offer a discount, so please comment. #HemiSync #HemiSync #Meditation #Mindfulness #Relaxation #Healing #JapaneseGuidance #Subconscious #SelfImprovement #Neuroscience #Spiritual #CD #TimelessPeace #ruchiruhealingcollection