Telephone line does not need to do 3C, generally do 3C, are electrical products, and these products are sold in the country! Electrical products are generally greater than 36V, is higher than the human body safety voltage, generally need to do 3C! If you still do not understand anything, you call directly to consult, in the end do not do 3C! Generally need to do 3C is as follows: China's first implementation of mandatory product certification (3C certification) of the product catalog (****19 categories of 132 kinds), a wire and cable (***5 kinds) Wire assembly, mining rubber flexible cable, AC rated voltage of 3kV and the following railroad rolling stock wire and cable, rated voltage 450/750V and the following rubber-insulated wire and cable, rated voltage 450/750 V and the following PVC-insulated wire and cable, circuit switching and protection or connection of electrical devices installed (***6 kinds) coupler (household, industrial and similar appliances), Plugs and sockets (household, industrial and similar purposes), thermal fuses, small fuses of tubular fuses, household and similar fixed electrical installations of the switch, household and similar fixed electrical installations of electrical accessories shell three, low-voltage appliances (***9 kinds) leakage protector, circuit breaker (including RCCB, RCBO, MCB), fuses, low-voltage switches (isolator, disconnecting switch, Fuse combination appliances), other circuit protection devices [protector category: current limiter, circuit protection devices, overcurrent protector, thermal protector, overload relay, low-voltage electromechanical contactors, motor starter], relays (36V below voltage 1000V), other switches (electrical switches, vacuum switches, pressure switches, proximity switches, foot switches, thermal switches, level switches, pushbutton switches Limit switches, microswitches, inverted switches, temperature switches, travel switches, changeover switches, automatic transfer switches, knife switches), other devices (contactors, motor starters, signal lamps, auxiliary contact assembly, the main command controller, AC semiconductor motor controllers and starters), low-voltage switchgear, four, low-power motors (* * * 1 kind of) low-power motors, five power tools (* * * 16 kinds of) electric tools (* * * * 16 kinds of) electric tools (* * * * 16 kinds of) electric tools (* * * * 16 kinds of) electric tools (* * * * 16 kinds of) electric tools (* * * * 1 kinds of) electric tools (* * * * 1 kinds of) * * * 16 kinds of electric drills (including impact drills), electric screwdrivers and impact wrenches, electric sander, sander, circular saws, electric hammers (including pickaxe), non-flammable liquid electric spray gun, electric scissors (including double-edged electric scissors, electric punching shears), tapping machines, reciprocating saws (including curved saws, saws), insertion of the concrete vibrator, electric chain saws, electric planes, electric pruning shears and electric grass clippers, electric wood milling and trimming machine, electric stone Cutting machine (including marble cutting machine) six, electric welding machine (***15 kinds) small AC arc welding machine, AC arc welding machine, DC arc welding machine, TIG arc welding machine, MIG/MAG arc welding machine, submerged arc welding machine, plasma arc cutting machine, plasma arc welding machine, arc welding transformer anti-electrocution device, welding cable coupling device, resistance welding machine, welder wire feeding device, TIG welding torch, MIG / MAG welding Torch, electric welding pliers seven, household and similar equipment (*** 18 kinds) 1. household refrigerators and food freezers: effective volume of 500 liters or less, household or similar purposes with or without frozen food storage room refrigerators, frozen food storage boxes and food freezers and their combinations 2. fans: single-phase alternating current and direct current household and similar electric fans 3. air conditioners: refrigeration capacity of up to 21,000 kcal / h of household and similar uses 21000 Kcal / hour of household and similar uses of air conditioners 4. motor - compressor: input power of 5000W or less in household and similar uses of air conditioning and refrigeration units used in hermetic (hermetic, semi-hermetic) motor - compressor 5. household electric washing machine: with or without water heating device, dehydration device or drying device for washing clothes Electric washing machine with or without water heating device, dehydration device or drying device for washing clothes 6. electric water heater: the water heated to below the boiling point of the stationary water storage and fast-heating electric water heater 7. room heater: household and similar uses of radiant heaters, plate heaters, liquid-filled heaters, fan heaters, convection heaters, tubular heaters 8. vacuum cleaner: with the function of sucking out the dry dust or liquids, by the series-excited Rectifier motor or DC motor vacuum cleaner 9 skin and hair care appliances: used as human or animal skin or hair care and electrical appliances with electric heating elements 10 iron: household and similar uses of dry irons and wet (steam) irons 11 induction cooker: household and similar uses of electromagnetic energy heating cooker, which can contain one or more electromagnetic heating element 12. Electric oven: including rated volume of not more than 10 liters of household and similar uses of electric ovens, bread bakers, waffle molds and similar appliances 13. electric food processing equipment: household electric food processors and similar uses of multifunctional food processor 14. microwave ovens: frequency of more than 300 MHz in one or more I.S.M. band of electromagnetic energy to heat the food and beverages for household appliances Electric cookers, ranges, ovens and similar appliances: including household electric stoves, separate fixed ovens, cooktops, table-top electric stoves, electric stoves, cooktops, grills and griddles and built-in ovens, grills 16 hoods: installed in the upper part of the household cooking appliances and stoves, with a fan, lamps and control regulators such as for the removal of fumes from the kitchen in the suction of household appliances 17 liquid heaters and hot and cold water dispensers 18 rice cookers: the use of electric heating elements heated by automatic insulation or timer type rice cooker VIII, audio and video equipment (excluding broadcast audio equipment and car audio equipment) (*** 16 kinds) total output power in the 500W (RMS) below the single-speaker and multi-speaker active speakers, audio power amplifiers, tuners, a variety of broadcast band Radio, various carrier forms of audio and video recording, playback and processing equipment (including various types of CD-ROM tapes and other carrier forms), and a combination of the above equipment, audio and video equipment supporting the power adapter, various imaging modes of color television receivers, monitors (excluding automotive television receivers), black-and-white television receivers and other monochrome television receivers, video (show) tube, video recorders, satellite television broadcasting receivers, electronic organs, electronic organs, satellite television broadcasting receivers, video recorders, video recorders, satellite television broadcasting receivers, video recorders, video recorders, video recorders, video recorders, video recorders, video recorders, video recorders, video recorders, video recorders and other monochrome television receivers. Television broadcasting receivers, electronic organs, antenna amplifiers, cable distribution system equipment and components for sound and television signals IX, information technology equipment (*** 12 kinds) microcomputers, portable computers, display devices connected to computers, printing devices connected to computers, multi-purpose printing and copying machines, scanners, computers with built-in power supplies and power adapters and chargers, computer game consoles, learning machines, Photocopiers, servers, financial and trade settlement electronic equipment X. Lighting equipment (***2 types) (excluding lighting equipment with a voltage of less than 36V) lamps and lanterns, ballasts XI. Telecommunication terminal equipment (***9 types) modems, facsimile machines, fixed-line telephone terminals (ordinary telephones, caller ID display telephones, card-operated management telephones, recording telephones, coin-operated telephones, smart-card telephones, IC card public telephones). telephones, IC card public telephones, speakerphones, digital telephones, telephone add-ons), cordless telephone terminals (analog cordless telephones, digital cordless telephones), group telephones (group telephones, teleconference switchboards), mobile subscriber terminals (analog mobile telephones, GSM digital cellular mobile stations (handhelds and other terminals), CDMA digital cellular mobile stations (handhelds and other terminals)), mobile phone terminals (analog mobile telephones, GSM digital cellular mobile stations (handhelds and other terminals)). other terminal equipment)), ISDN terminals (network terminal equipment (NT1, NT1+), terminal adapter (card) TA), data terminals (store-and-forward fax/voice cards, POS terminals, interface converters, network hubs, other data terminals), multimedia terminals (videophones, conference TV terminals, information-on-demand terminals, other multimedia terminals) XII. Motor vehicles and security Accessories (*** 4 kinds) (a) car: on the highway and urban roads M, N, O vehicles (2) motorcycle: engine displacement more than 50cc or the maximum design speed of more than 50Km / h motorcycle (3) car motorcycle parts: car seat belts, motorcycle engines, motorcycle engine thirteen, motor vehicle tires (*** 3 kinds) (a) car tires: car tires (car radial tires, car beveled tires) Radial tires, car bias tires), truck tires (mini truck tires, light truck tires, medium / heavy truck tires) (2) motorcycle tires: motorcycle tires (code series, metric series, lightweight series, small wheel diameter series) XIV, safety glass (*** 3 kinds) automotive safety glass (A laminated glass, B laminated glass, area) Tempered glass, tempered glass), architectural safety glass (laminated glass, tempered glass), safety glass for railway vehicles (laminated glass, tempered glass, safety insulating glass) XV, agricultural machinery products (*** 1 kind) plant protection machinery (backpack sprayer (device), backpack duster (device), backpack spray duster) XVI, latex products (*** 1 kind) rubber cover XVII, medical equipment Products (***7 kinds) medical X-ray diagnostic equipment, hemodialysis devices, hollow fiber dialyzer, blood purification device of the extracorporeal circulation pipeline, electrocardiograph, implantable cardiac pacemakers, artificial heart-lung machine XVIII, fire-fighting products (***3 kinds) fire alarm equipment (point-type smoke-sensitive fire alarm detectors, point-type temperature-sensitive fire alarm detectors, fire alarm controllers, fire linkage control equipment, Manual fire alarm button), fire hose, sprinkler equipment (sprinkler heads, wet alarm valves, water flow indicators, pressure switches for firefighting) nineteen, security technology prevention products (*** 1 kind) intrusion detector (indoor microwave Doppler detector, active infrared intrusion detector, indoor passive infrared detector, microwave and passive infrared composite intrusion detector).