Generally about 100 ~ ~ ~ depending on what brand you want, good performance more expensive, it is recommended to go to the after-sales change, they will be another invoice, warranty of three months!
★Shanghai Guoyu Communication Equipment Co., Ltd. 606 Chifeng Road, Shanghai 021-65830156
★Shanghai Junjie Communication Equipment Co., Ltd. 711 Laoshan East Road, Pudong, Shanghai 021-58405567
★Shanghai Star Digital Technology Co.
★Shanghai Lingxun Communication Electronics Co. 2F, Building 1, Chang'an Mansion, No. 488, West Tianmu Road, Shanghai 021-51017999
Shanghai Xingnuo Communication Equipment Co. 2F, No. 758, Cao Yang Road, Putuo District, Shanghai 021-51037800
Shanghai Xukang Communication Equipment Co. 021-57185128
Shanghai Huanhaofeng Communication Co. 332 Xincheng Road, Jinshan District, Shanghai, China 021-57972505
Shanghai Shengsheng Communication Equipment Co. 59 Shangcheng Road, Qingpu District, Shanghai, China 021-59725947
Shanghai Boshang Communication Equipment Maintenance Co. No.169 Chengzhong Road, Jiading District, Shanghai 021-59928857
Shanghai Starcom Digital Technology Co. No. 1450, West Changjiang Road, Baoshan District, Shanghai, China 021-66222002
Shanghai Ganghua Communication Equipment Co. 2F, No. 311, Dongmen Street, Huinan Town, Nanhui District, Shanghai, China 021-68018698
Shanghai Huihong Communication Electronics Co. 58989049
Shanghai Dixin Electronic Communication Technology Co. 4F, Bailian South Shopping Center, No.7388 Humin Road, Minhang District, Shanghai 021-34121402