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Bluno - An Arduino Bluetooth 4.0 (BLE) Board - DFRobot
Wireless Bluetooth 4.0 Smart Bulb Tuya App Control Dimmable 15w E27 Rgb+cw+ww Led Color Change Lamp Compatible Ios/android - Led Bulbs & Tubes - AliExpress
At-09 Android Ios Ble 4.0 Bluetooth Module 6pin For Arduino Cc2540 Cc2541 Serial Wireless Module Compatible Hm-10 - Integrated Circuits - AliExpress
Send AT Commands to BLE 4.0 Module From Android Phone : 5 Steps - Instructables
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Soundstream VRN-DD7HB 7" Touch Screen GPS Navigation and Audio System, 2 DIN, Android Phone Link, Bluetooth 4.0 - Walmart.com
SMD LED Light Control Module BLE Bluetooth 4.0 Board Module for iOS/Android 4.2 Smart Home
Vgate iCar Pro Bluetooth 4.0 OBDII Scanner for Android & iOS Firmware V2.3
TOPDON - BTMOBILE PRO - Battery Tester and Analyzer - 12V - Bluetooth – UHS Hardware
Bluetooth 4.0 Connect NO.1 G2 Smartwatch to Android smartphone Tutorials - YouTube
TV Box Android 9.0, Turewell T95Z Plus 4GB RAM 64GB ROM TV Box
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Amazon.com: Veepeak OBDCheck BLE Bluetooth OBD II Scanner Auto Diagnostic Scan Tool for iOS & Android, Bluetooth 4.0 Car Check Engine Light Code Reader : Automotive
How to tell Bluetooth version on your Android smartphone
PIPO X8R Mini TV Box 7 Inch IPS Screen RK3288 Bluetooth 4.0 Quad Core 32GB Android Tablet Mini PC
Vgate iCar Pro Bluetooth 4.0 OBDII Scanner for Android & iOS Firmware V2.3
Mo-Fit Trio Heart Rate Monitor Chest Strap / HRM for Apple, Android, P – Engine Design Group
Amazon.com: Double Din Car Stereo, Android 10 Radio with Bluetooth 4.0,Built-in DSP, Eonon 10.1 Inch Car Radio with IPS Screen Car Stereo Support WiFi/Fast Boot/Backup Camera(NO DVD/CD)-GA2187 : Electronics
Mo-Fit Heart Rate Monitor Chest Strap for Garmin, Apple, Android, ANT+ – Engine Design Group