Soundlong Electronics (Shenzhen) Co., Ltd., also known as Sound Long Co., Ltd., is a contract manufacturer of loudspeakers and sound boxes, established in 1998. Located in Changzhou, China, the company operates a factory covering over 20,000 square meters and employs approximately 700 staff. They specialize in a wide range of speakers, including automobile, computer, telecom, and TV speakers, as well as Hi-fi and home theatre sound boxes, offering over 400 types of speakers and 100 kinds of sound box systems. With six loudspeaker assembly lines, two sound box assembly lines, three voice coil manufacturing lines, and 23 punch machines, Soundlong Electronics has a monthly production capacity of 1.5 million loudspeakers and 100,000 sound boxes. The company holds ISO 9001, ISO 14001, ISO9002, and ISO/TS16949 certifications, reflecting its commitment to quality and environmental management. Soundlong Electronics has a strong international presence, exporting 98% of its products to Europe, America, and Japan, and has a history of cooperation with major international corporations such as Sony, Siemens, Thomson, Alcatel, Sharp, and National.
OEM manufacturerOffers OEM services for customized brand manufacturing.
High capacity factoryCan handle large-scale or bulk production orders.
Established brandFounded in 1998, with over 20 years of industry experience.
Eco-friendly supplierUses sustainable and eco-friendly materials.
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Speaker Box for LCD TV (SP40-01)
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Speaker Box (SP4030-02)
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Speaker Box for LCD TV (SP4030-02)
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Speaker Box (SP4030-01)
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ALCATEL
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Certifications
ISO 14001
1
International Organization for Standardization 14001
ISO 9001
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International Organization for Standardization 9001
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Southlong Science and Technology Co., Ltd. is a Shenzhen, China-based opto-electronics company established in 2009, operating as a manufacturer, trading company, and other business types. With 51 to 100 employees, the company specializes in high-quality LED display technology, including LED screens, LED displays, LED display control systems, LED Modules, LED Display Video Processors, Soft LED Curtains, LED lamps, and panel drivers. Their mission is to be a leading worldwide supplier of professional LED display solutions.
LED Module (SL-001)
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Samlong Electron (Shenzhen) Co., Ltd.
🇨🇳 China
2007301-500 peopleManufacturer
OEM manufacturer
Description
Samlong Electron (Shenzhen) Co., Ltd. is a professional manufacturer of high-quality home appliances, specializing in DVD players and digital receiver audio systems. Based in Shenzhen, China, the company operates as a manufacturer with over 300 employees, including a team of domestic and international engineers. Established in 2007, Samlong Electron offers a full line of professional product services, focusing on consumer electronics such as DVD players, DVB-T receivers, home theater systems, HDMI DVD players, progressive scan DVD players, and DVD+DVB-T combo units. The company is equipped to handle significant production volumes, with minimum order quantities typically ranging from 1,000 to 3,000 pieces for their featured products.