Specification Brand : VBESTLIFE BulletPoint1 : Manual Knob: FM transmitter pickup module uses manual knob to find the station more accurately, you need to manually input the receiving frequency carefully, such as input 88.1MHZ ,88.2MHZ, 88.3MHZ.... .108.0MHZ. BulletPoint2 : Long Range: FM emission mic core board using 9V power supply, 0.7m/2.3ft wire as antenna, open place transmitting distance of 50‑100m/ 164.0‑328.1ft, the actual communication distance varies depending on the environment, antenna location, receiver Sensitivity, etc. are different. BulletPoint3 : Through the Wall: FM transmitter pickup board can penetrate the wall, depending on the wall reinforced concrete structure, thickness and density, the general wall can wear 2‑3 block, through the wall capacity by the specific antenna placement, battery voltage, radio sensitivity decision. BulletPoint4 : Battery Power Supply: FM transmitter pickup module can use common batteries, the higher the working voltage the greater the transmitting distance, the greater the battery capacity the longer the working time, the actual working time to the actual battery capacity shall prevail. BulletPoint5 : Parameters, Materials: FM radio transmitter module working voltage is ultra wide 0.7V to 9V; frequency adjustment range is wider than 88‑108MHZ. premium PCB material, high density, and reliable, aging resistance. CompatibleDevices1 : Laptop CompatibleDevices2 : Speaker ConnectivityTechnology : Bluetooth ConnectorGender : Female-to-Male ConnectorType : Stereo Audio ConnectorType1 : USB ConnectorType2 : USB ExternallyAssignedProductIdentifier1 : 0643934583135 ExternallyAssignedProductIdentifier2 : 643934583135 ItemName : VBESTLIFE 2Pcs FM Transmitter Pickup Module, 88.1-108.0MHZ Radio Transmitter Module, Manual Knob, DC 0.7V-9V, Battery Power Supply, Small, VBESTLIFEwhvr2kg1xp ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 10 centimeters ItemPackageDimensions_Width : 5 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : mp3-player-radio-transmitters Manufacturer : VBESTLIFE Material : Polycarbonate (PC) MediaType : CD ModelName : VBESTLIFEwhvr2kg1xp ModelNumber : VBESTLIFEwhvr2kg1xp NumberOfItems : 1 PartNumber : VBESTLIFEwhvr2kg1xp PowerSourceType : Battery Powered ProductDescription : Specification:Item Type: FM Transmitter Pickup ModuleMaterial: PCBOperating Voltage: Ultra Wide 0.7V to 9VFrequency Adjustment Range: Wider Than 88-108MHZTransmitting Distance: 9V Work, Using 70cm/27.6in Wire for Antenna, Open Place Transmitting Distance of 50‑100m/ 164.0‑328.1ft, The Actual Depends on the EnvironmentThe Relationship Between Operating Voltage (Volts) and Supply Current (mA) and Transmitting Power (dBm) is as Follows:9V, 24 mA, 10.2 dBm (That is, 11 mW)8V, 21 mA, 9.5 dBm7V, 19 mA, 8.5 dBm6V, 17 mA, 7.1 dBm5V, 14 mA, 6.1 dBm (Approximately 5 mW)4V, 12 mA, 4.5dBm3V, 9 mA, 2.2dBm2V, 6 mA, -1dBm (1 mW)1.5V, 4.2 mA, -4 dBm (About 0.5 milliwatts, the general home environment is enough to transmit, green radiation is small!)1V, 2.4 mA, -9 dBm0.7V, 0.9 mA, -20 dBm (That is, 0.01 milliwatts)How to Use:Wiring method:The back of the core board is marked with +, ‑, and ANT, representing the positive power supply, negative and antenna terminal, the antenna is generally soldered a short 0.7 meters long wire can.Package List:2 x FM Transmitter Pickup ModuleNotice:It is not recommended to use the earphone wire as the receiving antenna for the mobile phone, which has low sensitivity and large interference, and the effect is affected. ProductSiteLaunchDate : 2024-04-27T17:06:14.871Z Size : Small Style : Modern SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 WarrantyDescription : Manufacturer warranty for 90 day