... HT 318 Product name: 3 in 1 hand warmer which 3 functionsUSB Hand warmerRechargeable portable charger for mobile phone, tablet ... blue, green, golden, silver, black color available; Long life cycling time more than 500 timesLarge Logo printing position, logo printing ... so could offer customer the more competitive price with same quality.Cerficate of goods: Environmental materials pass ROHS, CE standard ...