وحدة تحويل إشارة TTL إلى RS485 معزولة بجهد 3-5 فولت تيار مستمر، وحدة تحويل RS485 إلى TTL مع تحكم تلقائي في التدفق

STUDIOFINIX 5.25 Inch 250W 2 Way Marine Speakers with LED Lights Weather Resistant Waterproof for Boats ATVs UTVs Stereo 1 Pair

MINI Bluetooths Ceiling Speakers Stereo sound Indoor home audio Background music system For Bathroom Kitchen Living room bedroom

K12 Portable Karaoke Speaker with Microphones RGB LED Lights Deep Bass Long Battery Life for Family Use

SOTAMIA 2PCS 2.5 Inch Two Way Passive Speaker Silk Film Tweeter Neodymium Iron Boron Strong Magnetic Bass Desktop Audio

Redragon GS515 RGB Desktop Soundbar, 2.0 Channel Stereo Computer Speakers for Desktop

TG227 Waterpro With Lamp Outdoor Portable Upright Wireless Compatible Speaker Music Player Support USB/ TF/ FM Radio Music Party

4/5/6.5 Inch Car Speakers 2-Way Vehicle Door Audio Music Stereo Subwoofer Full Range Frequency Automotive Coaxial Speakers 1pcs

Pillow Speakers for Sleeping Wireless Bone Conduction White Noise Machine Portable for Adults Bedside Home Travel Gift

EONKO WS-1955 Nomad Deep Bass Car Shaped Bluetooth Speaker with TF USB FM AUX Handsfree TWS Selfie Disco Light

FP-722-S Dual Solar Charging AM/FM/SW1-2 4-band Radios HIFI Stereo Bluetooth Speaker Portable Mp3 Music Player Built in Speakers

OHAYO X10MAX Bluetooth Speaker 35W - IPX7 Waterproof, Powerful Stereo Sound, 24H Playtime, TWS Pairing, Dazzling Lights, Bass Up

New Bedroom Pillow Sleep Speaker Under Pillow Bluetooth Speaker Sleep Aid Bluetooth5.4 Music Player Support TF Card

JBL XTREME4 Hong Kong Version 80% New Refurbished Speaker BT5.3 24H Playtime IP67 Waterproof 100W AI Sound Boost Auracast

Portable Wireless Bluetooth Speaker Blutooth Music Sound Box For Caixa De Som Blootooth Subwoofer Radio FM Handfree Bass System

Small Bluetooth Speaker FM Radio Built in Mic Bone Conduction Speaker TWS Wireless Stereo large Volume Sound Box Aluminum Alloy

Portable wirelessly BT speaker Wirelessly BT Speaker Bone Conduction Speakers Stereo Sound Built-in Mic Sound Box Red

Portable Bluetooth Party Speaker 15" Subwoofer w/Stand Sound System Dj Karaoke RGB Light Rechargeable Outdoor Speaker with Mic

ZEALOT-ZE41 250W Portable Bluetooth Speaker High Volume Waterproof 48000mAh Wireless TWS Subwoofer Suporrt USB/TF/AUX RGB light

Portable High Sound Quality Multifunction TV Computer Subwoofer Sound Surround Music SoundBar Wireless Wooden Bluetooth Speakers

Portable Wireless Bluetooth Sound Bar Speaker Subwoofer TV Projector Desktop Home Outdoor Stereo Sound Ystem Super Power Speaker

Herdio 4 Inch Bluetooth Speaker Outdoor Indoor 200 Watt Wall Mount Waterproof Bass Loudspeaker For Home Yard Boat Deck

XIKCU Dual Speaker Bluetooth Speaker Stereo Outdoor Tfusb Playback Fm Voice Broadcasting Portable Subwoofer 50 Wireless Speaker

duraMOBI Bone Conduction TWS Stereo Wireless Speaker Portable and Compact Mini Sound Box with Magnetic Adsorption Function BT

mifa A10+ Portable bluetooth speaker 360° Stereo Sound 20W IPX7 waterproof wireless bluetooth 5.0 speaker 24-Hour Play time

4/5/6 Inch Automobile Audio HiFi Music 12V 2 Way Car HiFi Coaxial Speaker 300W/400W/500W Vehicle Audio Music Stereo Subwoofer

K08 Bluetooth Speakers Portable True Wireless Sound Box Waterproof Loudspeaker Outdoor Stereo Surround Supports TF Radio

300W 8 Inch Bookshelf Speakers Coaxial Sound Audio Fever Hifi Home Theater System Music Wooden Sound Equipment Passive Speaker

TG182 Solar with flashlight speaker Outdoor Bluetooth speaker 10W USB portable wireless support TF card FM radio assisted input

TRIBIT StormBox 2 Portable Bluetooth Speaker 34W Powerful Sound IPX7 Waterproof Wireless Speaker 24-Hour Playtime for Camping An

Philips TAS3209 Portable Wireless Speaker W/ Colorful Lighting 1800mAh Battery Life Wonderful Sound Music for Outdoor Camping

Bluetooth Speaker TG116c TWS Wireless Powerful Box Portable Outdoor Speakers Waterproof Subwoofer 3D Stereo Sound HandsFree Call

Wearable Bluetooth Speaker IPX7 Waterproof Portable Speakers Outdoor Sport Clip-On Microphone Speaker Calls/Music Mini Sound Box

JBL Flip6 Bluetooth Speaker IP67 Waterproof Dustproof Portable Wireless Speaker Rich Bass for Outdoor Beach Home Office

Wireless Bluetooth Speaker, with 12H Playtime, Bluetooth 5.3, HD Stereo Sound, Wireless Hands-Free Calling, Portable for Travel

Creative Colorful Jellyfish Lamp Bluetooth Speaker HiFi Stereo 1800mAh Sports Jellyfish Speaker with Lights for Home Office

AULA GS6Pro Desktop Esports Speaker Home Computer Audio Wired Bluetooth Desktop Gaming with Microphone High Sound Quality