--- product_id: 139537600 title: "DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell" brand: "owaykey" price: "₨526" currency: SCR in_stock: true category: "Owaykey" url: https://www.desertcart.sc/products/139537600-damgoo-bluetooth-amplifier-board-50w-50w-2-channel-audio-amplifier store_origin: SC region: Seychelles --- # Bluetooth & AUX dual mode 50W+50W stereo power 4.5-24V wide voltage input DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell **Brand:** owaykey **Price:** ₨526 **Availability:** ✅ In Stock ## Summary > 🎶 Upgrade your sound game—power, control, and connectivity in one sleek board! ## Quick Answers - **What is this?** DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell by owaykey - **How much does it cost?** ₨526 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/139537600-damgoo-bluetooth-amplifier-board-50w-50w-2-channel-audio-amplifier) ## Best For - owaykey enthusiasts ## Why This Product - Trusted owaykey brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **User-Centric Controls:** Five tactile buttons put play, pause, track navigation, and volume control right at your fingertips. - • **Compact & Durable Design:** Sleek protective shell and lightweight PCB form factor make upgrading your audio system a breeze. - • **Power-Packed Stereo Output:** Experience crisp, room-filling sound with 50W per channel that elevates any retrofit speaker setup. - • **Seamless Device Connectivity:** Switch effortlessly between Bluetooth and AUX inputs with intuitive physical buttons—no passwords, no hassle. - • **Flexible & Safe Power Options:** Compatible with most laptop adapters and protected against reverse polarity for worry-free installation. ## Overview The DAMGOO Bluetooth Amplifier Board (model ZK-502B) delivers robust 100W stereo output via a high-performance TPA3116 chip, supporting wide voltage input (4.5-24V) and dual Bluetooth/AUX modes. Designed for easy retrofit of speakers, it features intuitive physical controls, reverse polarity protection, and flexible power options, all housed in a compact protective shell for seamless, high-quality audio enhancement. ## Description Buy DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell: Amplifiers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - 【High-Performance TPA3116 Chip】The XY-502B amplifier utilizes the advanced TPA3116 chip, delivering vibrant 2.0 stereo sound with wide voltage input support (DC 4.5-24V) and a powerful output of 50W+50W for rich audio performance. - 【Dual Output Modes & Easy Switching】Supports both Bluetooth and AUX input modes, allowing seamless switching via physical buttons to connect effortlessly with various devices. - 【Flexible Power Options】Features two power connection methods: a 5.5*2.1mm DC jack and terminal blocks, compatible with most laptop power adapters for convenient setup. - 【Reverse Connection Protection】Equipped with reverse polarity protection to safeguard your power input and prevent damage from incorrect wiring. - 【Intuitive Physical Control】Five tactile buttons provide direct control for play/pause (long press to switch input mode), previous/next track, and volume adjustment, ensuring user-friendly operation. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07SHRM5H8 | | Best Sellers Rank | #83,078 in Electronics ( See Top 100 in Electronics ) #528 in Audio Component Amplifiers | | Brand Name | OWAYKEY | | Customer Reviews | 4.6 out of 5 stars 360 Reviews | | Item Dimensions | 3.43 x 2.09 x 1.14 inches | | Item Weight | 87 g | | Item dimensions L x W x H | 3.43 x 2.09 x 1.14 inches | | Manufacturer | DAMGOO | | Material Type | PCB | | Maximum Output Power | 100 watts | | Maximum Supply Voltage | 24 volts_of_direct_current | | Minimum Supply Voltage | 4.5 volts_of_direct_current | | Model | ZK-502B | | Mounting Type | Surface Mount | | Number of Channels | 2 | | Number of Items | 1 | | Number of Packs | 1 | | Output Power | 100 watts | | Package Type Name | box | | Part Number | ZK-502B | | Supply Current | 5 A | | Unit Count | 1 Count | | Voltage | 24 volts_of_direct_current | ## Product Details - **Item dimensions L x W x H:** 3.43 x 2.09 x 1.14 inches - **Manufacturer:** DAMGOO - **Maximum Supply Voltage:** 24 volts_of_direct_current - **Minimum Supply Voltage:** 4.5 volts_of_direct_current - **Voltage:** 24 volts_of_direct_current ## Images ![DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell - Image 1](https://m.media-amazon.com/images/I/71gwdtlNUOL.jpg) ## Frequently Bought Together - DAMGOO Bluetooth Amplifier Board,50w+50w 2 Channel Audio Amplifier Board Suitable for retrofit Speakers Bluetooth Speakers,Easy Installation and Password Free Connect to Phone with Protective Shell - TalentCell Rechargeable 12V 6000mAh/5V 12000mAh DC Output Lithium ion Battery Pack for LED Strip/CCTV Camera/Telescope/Modem and More, Portable Li-ion Power Bank with 12.6V Charger, Black - TalentCell 12V Power Bank, Rechargeable 12V 3000mAh DC Output Lithium ion Battery Pack with Charger for LED Strip/Light/Panel/Amplifier and CCTV Camera, Compatible with Spectra Pump/Telescope --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sc/products/139537600-damgoo-bluetooth-amplifier-board-50w-50w-2-channel-audio-amplifier](https://www.desertcart.sc/products/139537600-damgoo-bluetooth-amplifier-board-50w-50w-2-channel-audio-amplifier) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-10-02*