Accessories Fitness BandsRiversong Launches New Fitness Band, ‘Wave S’devicenextAugust 13, 2020August 13, 2020 by devicenextAugust 13, 2020August 13, 202015 Riversong, a subsidiary of the leading mobile phone developer- IMG Technology Group, has added a new product to their fitness family, Wave S, afitness band, the successor...