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UPS with automatic voltage regulation?

Home battery backup systems?

UPS vs power bank differences?

How long do backups last?

Bluetooth 5.0 Audio Adapter, 5-in-1 Wireless Music Transmitter AUX Receiver USB TF Micro SD Card MP3 Player for TV CD PC Car Home Stereo to Wireless Wired Soundbar Headphones Speakers

$36^.79

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Bluetooth Audio Adapter for Music Streaming Sound System, Esinkin Wireless Audio Adapter Works with Smartphones and Tablets, Bluetooth Receiver for Home Stereo

$73^.74

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AJMRTC Bluetooth 4.0 Audio Transmitter Adapter, 3.5mm AUX Jack Wireless Stereo Audio Transmitter, A2DP Low Latency Wireless Audio Dongle for TV, DVD Player, PC, MP3 to Bluetooth Headphones Speakers

$25^.75

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AJMRTC 2 in 1 Bluetooth Audio Transmitter Receiver Adapter, 3.5mm AUX Wireless Bluetooth Transceiver, TX RX Mode Stereo Audio Adapter for TV, Speaker, Car Stereo, Headphones, PC Laptop

$24^.56

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Bluetooth Transmitter Receiver Portable Wireless Bluetooth 5.0 Adapter, Bluetooth Audio Transmitter for TV/Car/Home Audio Music Streaming Sound System, Low Latency, Plug and Play

$10^.50

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KEHIPI 2-in-1 Bluetooth 5.0 Transmitter Receiver with 3.5mm Jack Aux for TV PC Home Car Sound System

$18^.99

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C&N USB-C 3-in-1 Audio Charging Adapter, Supports 60W PD Fast Charging, High Fidelity 32bit Audio Output, Compatible with iPhone 16/15 Pro Max/Samsung/ iPad Pro/Air(GS1-USBC 90°)

$25^.99

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AJMRTC Bluetooth 5.0 Audio Transmitter Receiver Adapter, aptX HD Low Latency Wireless 3.5mm AUX Audio Converter, 2-in-1 TX RX Mode for TV PC Headphones Speaker Car Stereo

$40^.56

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AJMRTC Bluetooth 4.0 Audio Transmitter, 3.5mm AUX Jack Wireless Audio Adapter, Wired to Bluetooth Converter for TV DVD MP3 Player PC Tablet, Low Latency Stereo Audio Transmitter

$26^.49

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AJMRTC BW-107 Bluetooth Audio Transmitter, 1 to 3 Audio Sharing Wireless Transmitter Car Kit, 3.5mm AUX Input Stereo Music Adapter for TV PC Car Audio, Simultaneously Pair 3 Bluetooth Headphones Speak

$40^.67

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AJMRTC 2 in 1 Bluetooth 4.2 Audio Transmitter Receiver, 3.5mm AUX Wireless Audio Adapter for TV, Headphone, Speaker, Car Audio and MP3 Player

$28^.02

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Bluetooth 5.0 Audio Adapter, 5-in-1 Wireless Music Transmitter AUX Receiver USB TF Micro SD Card MP3 Player for TV CD PC Car Home Stereo to Wireless Wired Soundbar Headphones Speakers

$33^.31

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Bluetooth 5.3 Transmitter Receiver for TV to 2 Headphones | Dual Link aptX Adaptive/LL/HD Audio with Volume Control, 3.5mm AUX/RCA Jack Bluetooth Adapter for Home Stereo, Airplane, Gym

$59^.38

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Sound Card Sound Mixer Board with Bluetooth-Compatible Wireless Accompaniment 16 Sound Effects LED Light Intelligent Noise Reduction and Bass Mid Treble Control for Phone Computer Live Streaming

$46^.89

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Bluetooth 5.0 Receiver 3.5mm AUX Jack Audio Wireless Adapter for Car PC Headphones Bluetooth 5.0 Receptor

$21^.38

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Volume Discounts:$21.08 - $21.38

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UGREEN Magnetic USB C to 3.5mm Audio Adapter and Charger 2 in 1 Hi-Res 32bit/384kHz Aux to USB C with PD 60W Fast Charging Dongle Cable for iPhone 16 Pro Max, Switch 2, Galaxy S25Ultra, iPad Pro

$33^.99

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USB C to 3.5mm Audio Adapter 3 in 1 Charger and Headphone Splitter USB C to Aux Dual Headphone Jack with PD 60W Fast Charge Cable for iPhone 17/16 Pro Max, Galaxy S25/24 Ultra, Pixel 10, iPad

$44^.19

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WiFi 6E AX5400 PCIe WiFi Card for Desktop PC (Intel AX210) Bluetooth 5.3, WPA3, 802.11AXE Tri Band Wireless Adapter with MU-MIMO, OFDMA, Ultra-Low Latency, Supports Windows 11, 10 (64bit)

$42^.79

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AJMRTC 2 in 1 3.5mm Stereo Audio Transceiver Adapter, Bluetooth Audio Receiver Transmitter, Wireless Audio Converter for Headphones TV PC Speaker

$20^.82

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USB C to 3.5mm Audio Adapter 3 in 1 Charger and Headphone Splitter USB C to Aux Dual Headphone Jack with PD 60W Fast Charge Cable for iPhone 17/16 Pro Max, Galaxy S25/24 Ultra, Pixel 10, iPad

$40^.09

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Aux to Bluetooth 6.0 Adapter 3.5mm Bluetooth Receiver for Car USB 2.0 to 3.5mm Jack Kit with Built-in Microphone Aux Input for Hands-Free Calls Compatible with Car Speaker and Home Audio

$19^.59

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AJMRTC 2 in 1 Bluetooth Audio Transmitter Receiver, 3.5mm AUX Wireless Audio Adapter, Dual Mode TX RX Bluetooth Converter for TV, Headphones, Speaker, Car Stereo, MP3 Player, Home Audio System

$20^.83

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AJMRTC 2-in-1 Bluetooth 5.3 Audio Transmitter Receiver, 3.5mm AUX Wireless Audio Adapter TX RX Dual Mode, Low Latency Bluetooth Converter for TV, Headphones, Speaker, Car Audio, MP3, Wired Home Stereo

$20^.83

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BTR11 Bluetooth 5.3 Receiver LDAC 3.5mm Built-in Mic Wireless Audio Headphone Amplifier Adapter (Black)

$32^.79

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DC 5.5X 2.5mm to Hirose 4 pin Male Power Cable for Sound Devices 688 644 633,Recorder Zoom F4 F8 (Straight 4pin to Elbow dc2.5)

$57^.26

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Wireless Bluetooth 5.3 Receiver Audio Music Adapter Optical / AUX/RCA/MP3 Player

$42^.99

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Premium Bluetooth 6.0 Transmitter Receiver 2-in-1 Adapter For TV, plane, gym, car & home. Dual Link for 2 headphones. Low latency, stable. Works with all AirPods & wireless headphones

$44^.99

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Bluetooth 4.2 Audio Transmitter Receiver 2 in 1 Wireless Stereo Audio Adapter A2DP Receiver Mode with AVRCP 10 m Range 3.5 mm AUX Cable and 3.5 mm to 2 RCA Cable for TV Home Stereo Headphones Speakers

$20^.89

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AirFly Pro 2, Bluetooth Adapter, Pair 2 AirPods, White Pair 2 AirPods or Wireless Headphones 3.5mm AUX Bluetooth Transmitter and Receiver for Cars, Boats, Treadmills, TVs & More

$89^.99

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AirFly Pro 2 Deluxe, Wireless Bluetooth Adapter, White Pair 2 AirPods or Wireless Headphones 3.5mm AUX Bluetooth Transmitter/Receiver for Cars, Boats, Treadmills, TVs, Airplane

$104^.99

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AirFly Pro 2, Bluetooth Adapter, Pair 2 AirPods, Coastal Blue Pair 2 AirPods or Wireless Headphones 3.5mm AUX Bluetooth Transmitter and Receiver for Cars, Boats, Treadmills, TVs & More

$89^.99

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USB C to 3.5mm Headphone Aux Jack Adapter Cable with in-Line Control Type C to 3.5mm Audio Converter AUX Dongle Braided Cable Type C Earbuds Adapter for iPhone 18 Pro Max 17 16 15 Plus,Black

$22^.49

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USB C to 3.5mm Headphone Aux Jack Adapter Cable with in-Line Control Type C to 3.5mm Audio Converter AUX Dongle Braided Cable Type C Earbuds Adapter for Samsung S26 S25 Ultra S24 S23, White

$20^.99

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Bluetooth 5.0 Audio Adapter, 5-in-1 Wireless Music Transmitter AUX Receiver USB TF Micro SD Card MP3 Player for TV CD PC Car Home Stereo to Wireless Wired Soundbar Headphones Speakersd

$27^.31

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6.35mm 1/4 Male to 3.5mm 1/8 Female Audio Adapter, Gold-Plated TRS Stereo Jack, Solid Brass Housing, for Headphones, Guitar, Mixer, Amp, Keyboard, 2 Pack

$10^.79

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Aux to Bluetooth 6.0 Adapter 3.5mm Bluetooth Receiver for Car USB 2.0 to 3.5mm Jack Kit with Built-in Microphone Aux Input for Hands-Free Calls Compatible with Car Speaker and Home Audio

$19^.69

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