Founded in 1996, Shandong Kaer Electric Co., Ltd. is a provider of intelligent terminal and solution for the Internet of Things and mobile Internet. After 20 years of development, the company has formed a strong research and development strength in wireless communication terminal technology, wireless data terminal technology, smart education application technology, Internet of Things technology, embedded software technology, video technology, etc. The company has relatively complete product production qualifications, including: Telecommunications equipment network access license, national compulsory product certification, quality management system certification, etc. The main products include two categories, including smart communication equipment, IoT smart terminals and solutions. Up to now, the company has more than 100 patents, including 32 invention patents, and nearly 200 computer software copyrights.

J&R Technology Ltd is established in 2012, our headquarters is located in Shenzhen, China. We are the leading provider of dedicated communication and solutions. We are committed to providing faster, safer, and more stable communication equipment and solutions for customers in public safety, transportation, industry, and a wide range of sectors for daily work and critical moments, helping society to be more efficient and safer.

Tongya is a joint-venture with Japanese payphone-leader, Tamura Electrics (current name is SAXA), for 40 years. We manufactured the first payphone in Taiwan and have 2/3 of market share in Taiwan now. We have installed more than 30, 000 sets of PSTN payphone in all teleboutiques of Morocco, 1, 500 sets of GSM payphone in South Africa, 1, 000 sets of PSTN payphone in HK, and 2, 000 sets of PSTN payphone in Chile (please refer to the attached files showing our payphone is used by Telmex in Chile).

C-TOP Electronics Co., Ltd. was founded in 1996. The company is a high-tech Enterprise specializing in design, development, manufacture and market of world-class Telecommunications products.

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Ningbo Joiwo Explosionproof technology Co., Ltd was established in May, 2011, specialized in public telephones and industrial telephones, we enter industrial telephone field and register Joiwo as our trademark. While maintaining our commitment to the principles of quality and customer service, today's Joiwo aggressively applies leading edge technology to solve the world's most challenging communication needs. Our products are widely used in manufacturing sites of steel, vessel, petroleum and chemistry etc...Waterproof grade of all of our telephones reaches IP67.

Yuyao xianglong communication industrial Co., Ltd was founded in 2005, located in yuyao city, zhejiang province, xiao dong industrial park, is a production and sales of outdoor phone accessories and machine-based manufacturing company. Building area of? ? 5, 000 square meters, mold development, rubber molding, injection molding, assembly as one of the modes of production. Advanced machinery and equipment, modern production line, the parts per day to 2, 000 sets.