About Product:Brand: JOINUS Zhongcheng brand number: Js2017 model: JS-2017 material: ABS specification: 204*162 * 50mm adapter battery: ordinary dry cells applicable gift giving occasions: opening ceremony, advertising promotion, wedding, birthday, business gifts printed LOGO: can be processed custom: Yes product type: arithmetic calculator whether the voice function is supported: Yes display digit: 12 with battery or not: no net weight: 238(g) imported or not: no color: Picture color