Cervical Spine Mini Portable Pendant Hanging Neck Neck Supporter Shoulder And Neck Smart Neck Features: low-frequency technology: deeply stimulate and massage the neck, without going through the brain, directly acting the muscles, enjoying the of nerve relaxation. 5 modes: needling mode, sand scraping mode, pressing mode, kneading mode, beating mode High Frequency Mode: Gentle and heavy pressure like a real technician, easy switching to release pressure Fifteen of and : easily between different intensities to release pressure, gentle and hard like a real person, and accurately with various neck discomforts 270° fitting massage: the ergonomic electrode is used to all parts of the body Product details: Material: ABS Lanyard material: color: blue Color box size: 15.3x15.3x3.8cm Product size: 7x5x2cm Including color box: 0.13kg Product net weight: 0.073kg Massage duration: 15 minutes/time Massage Mode: 5 Massage : 15 gears Heating temperature: 3 gears Rated voltage: 5V Rated power: 5W Rated current: 1A