[SYN115] On-board single-chip ASK transmitter chip SYN115/F115. SYN115 is applied to 300-450mhz radio frequency remote control field of high performance, simple, easy to use ASK/OOK(on-off Keyed) transmitter chip. | [SYN115] The module supply voltage :1.8-3.6V; The module transmitting frequency: 433MHz; Module output power: <10dBm; The module trans rate: <10kbps. | [SYN480R] On-board single-chip wireless SYN480R ASK/OOK receiver chip, which is mainly used in the field of radio frequency remote control. | [SYN480R] The module supply voltage: 3.3-5.5V; The module receiving frequency: 433MHz; Module receiver sensitivity: -107dBm; The module transfer rate: 2.5kbps(SWP), 10kbps (FIXED). | Package included:5* 433MHZ Transmitter module+5* 433MHZ Receiver module

The MAX485 TTL to RS-485 Interface Module allows uCs to use the RS-485 differential signaling for robust long distance serial communications. | Long Distance: This low power transceiver module is based on the MAX485 IC to allow serial communication over very long cable runs (up 4000 feet / 1200 meters). | RS485 transceiver module Serial data can be transmitted in both directions (half duplex) at a data rate up to 2.5Mbps. It is possible to connect multiple modules together for communication between 2 or more devices（up to 32）. For even greater distances two modules can be configured as a repeater. | Applications: Applicable to Low-Power RS-485 Transceivers, Low-Power RS-422 Transceivers, Level Translators, Transceivers for EMI-Sensitive Applications, Industrial-Control Local Area Networks. | EASY TO USE: Data connections to the modules are provided by a standard 0.1" pitch header pins which can also be soldered into standard prototyping PCB and breadboards. Screw terminals provide convention connection to the actual data cable.

Frequency: 3500Hz; Maximum Power: 130W. Rated Power: 100W. | Circuit Filter Characteristics: Bass 12 dB/oct, Treble 12 dB/oct. | Dimension: 8.5 x 6 x 2cm/ 3.3 x 2.4 x 0.8 inches(L x W x H) | Application: A wonderful tool for you to use this amplifier on your car, motorcycle, golf cart and other places, where you need small amplifier in order to have a better listening experience. | Package include: 3 x 130W 2-Way Speaker System Audio Crossover Filters Frequency Distributor.

433mhz RF Transmitter and Receiver Superheterodyne UHF ASK Remote Control Switch Module For Arduino Wireless Diy Kit. | Support ASK / OOK modulation, the receiver sensitivity of -108dBm. | Mains input voltage range: 2.2V-5V; Operating frequency: 433.92 MHz, bandwidth of about ± 150KHz. | Low-power performance, along with high dynamic range (greater than 60dB). Module uses highly integrated chip, built front-end low-noise amplifier,Mixers, filters, frequency synthesizer circuit, etc., can maximize the signal optimization. | Applications: Can be used for wireless power switch, socket, remote control switch, receiver module, smart home products, remote control curtains, remote MP3, and so on.