NECKLACE ONLY – GO DEVICE NOT INCLUDED. This listing is for the Upright Necklace accessory only and does not include the Upright GO2 or GOS posture trainer. UPRIGHT: necklace is compatible with GO2 and GOS posture trainer – NOT compatible with GO Original. NO ADHESIVE: No need to replace stickers and suitable for all-day wear. CONVENIENT: Connect necklace via USB-C which can easily be taken on and off via the magnetic clasp. NEW: Improved sleek design made from high grade silicone which is more friendly to sensitive skin. STYLISH: Way to transform your posture in a selection of colors.