Agptek k1 music player User Manual Manufacturer: iSTAR TECH (HONGKONG ) CO., Ltd. Address: A, 3rd Floor, Building 4, Baoshu Technology Park, Bao’an District, Shenzhen, China. E-mail: [email protected]. To find out how to use K1 or if you have a problem, please refer to User Manual. The color of K1 sold in other countries/areas may …