Pyle Hydra Marine Amplifier - Upgraded Elite Series 400 Watt 4 Channel Audio Amplifier - Waterproof, Dual MOSFET Power Supply, GAIN Level Controls, RCA Stereo Input & LED Indicator - PLMRA402Experience powerful and reliable audio performance with our 4-Channel Marine Amplifier. Designed with marine-grade construction and a waterproof Marine Rating IP-01, this amplifier is built to withstand the harsh marine environment. Key Features: 4-Channel Amp System: Enjoy a versatile audio setup with four channels for enhanced sound reproduction. Dual MOSFET Power Supply: Benefit from efficient power delivery and improved audio performance. Dual Adjustable Input GAIN Level Controls: Fine-tune the input levels for optimal sound customization. Dual High-Level Speaker Input Connectors: Connect your speakers directly to the amplifier for easy installation. Dual RCA (L/R) Input Connector Jacks: Connect your audio sources with precision and clarity. Gold-Plated Speaker Output Terminal Connectors: Ensure secure and reliable speaker connections. Adjustable Input GAIN Level Control: Adjust the input gain to match your audio source and achieve the desired sound output. Anti-Thump Delay Circuitry: Prevent speaker thump and protect your speakers from sudden audio bursts. Built-in Thermal, Overload & Speaker Short Protection: Safeguard your amplifier and speakers from damage due to excessive heat or electrical faults. Heavy-Duty Aluminum Alloy Heatsink: Efficiently dissipate heat for improved amplifier performance and longevity. Power ON LED Indicator: Easily monitor the power status of your amplifier. Remote Turn ON/OFF: Conveniently control the amplifier's power remotely. What's in the Box: 4-Channel Marine Amplifier: Experience powerful and reliable audio amplification for your marine audio system. Audio Connection Cables: Connect your audio sources with ease. Technical Specs: Output Power: 100 Watt x 4 MAX: Enjoy robust and high-quality audio output. Amplifier Class: AB: Benefit from a balance between power efficiency and audio fidelity. Fuse Type: 20A: Protect your amplifier and electrical system from excessive current. Input Gain Impedance Adjustment: 1 - 300mV: Customize the input sensitivity to match your audio sources. Frequency Response: 15 - 30kHz +/-3dB: Experience a wide range of audio frequencies with accurate reproduction. Input Impedance: 10k Ohms (Low), 100 Ohm (High): Connect your audio sources with ease and compatibility. Input Sensitivity: 250mV (Low), 2.5V (High): Achieve optimal audio levels with different input sources. T.H.D.: <0.04%: Enjoy distortion-free audio playback. Matching Speaker Impedance: 4-8 Ohms: Connect a variety of speakers to the amplifier. Power Supply: DC 12V: Compatible with standard 12V power systems. Dimensions (L x W x H): 9.0'' x 7.9'' x 2.0'' -inPyle Marine Bluetooth Stereo Radio - 12v Single DIN Style Boat In dash Radio Receiver System with Built-in Mic, Digital LCD, RCA, MP3, USB, SD, AM FM Radio - Remote Control - PLMRB29W (White)Pyle Model : PLMRB29W Marine Bluetooth Stereo Receiver Radio Bluetooth In-Dash Stereo Radio Headunit Receiver, Wireless Music Streaming, Hands-Free Call Answering, MP3 Playback, USB/SD Card Readers, Aux (3.5mm) Input, Remote Control, Single DIN Features: Bluetooth Wireless Audio Streaming & Hands-Free Calling AM/FM Stereo Radio, 30 Station Memory USB Flash & SD Memory Card Readers Aux (3.5mm) Input Connector Jack Connect & Stream Audio from External Devices MP3 Digital Audio File Playback LCD Digital Display Panel ID3 Tag Song Readout for Artist Name/Song Title Illuminated Front Panel Button Controls (2) Pair Rear Panel RCA (L/R) Audio Output Connectors Equalizer (EQ) Electronic Audio Configuration Automatic Memory Preset Store/Scan Mode Repeat/Random Song Functions Remote Control Included Bluetooth Connectivity: Built-in Bluetooth for Wireless Music Streaming Built-in Microphone for Hands-Free Calling Convenient Reject/Answer Incoming Calls Compatible with All of Your Favorite Bluetooth Devices (iPhone, Androids, Smartphones, iPad, Tablets, etc.) Bluetooth Version: 2.1 +EDR Wireless Range: 40' Ft. What's in the Box: Stereo Receiver Power & Wiring Harness Remote Control Technical Specs: Single DIN Universal Size Standard MAX. Power: 300 Watt (75W x 4) PLL Electronic Tuning Radio Tuner ISO Connector Stereo/Mono Mode Selectable Audio Control: Bass/Treble/Balance/Fader Preset EQ: Flat/Pop/Rock/Class/Off Switchable USA/Europe Tuner Frequencies Max. USB/SD Memory Support: 32GB Power: DC 12V Current Consumption: 10A (Max.) The Pyle Digital Marine Stereo Receiver System features versatile media playback capability. Built-in Bluetooth allows for wireless music streaming and the built-in microphone on the receiver's front panel gives you hands-free talking ability. Conveniently answer or reject incoming calls safely so you can focus on navigation. The single DIN universal standard comes loaded with features like AM/FM radio with 30 station memory, USB flash drive reader, SD memory card reader, Aux (3.5mm) input jack -- along with rear panel RCA connectors. You will have the ability to connect and stream audio from all of your favorite devices (like smartphones, tablets and MP3 players). Digital audio file support allows you to stream your music playlists -- while ID3 tag song readout info displays the song title and artist on the LCD display screen. Control it all with the front panel buttons or use the included remote control. Add convenient, versatile and wireless audio streaming ability with the Pyle Bluetooth Marine In-Dash Stereo Receiver System.