... 3.OEM service 4.many colors:red,yellow,orange,whi ion watch1.Color: black, yellow, red, green, white, dark ... pain,neuralgia,and migraine4.facilitate sleep,stabilize nervous system,promote cell regeneration and prevent ageing5.improve concentration and boost ... work efficiency6.isolate electromagnetic radiation,such as cell phone,computer,television and other electronic devices7. waterproof ...