Best Bluetooth 4 0 Transmitters

TP-Link USB Bluetooth Adapter for PC, 5.0 Bluetooth Dongle Receiver (UB500) - Supports Windows 11/10/8.1/7 for Desktop, Laptop, Mouse, Keyboard, Printers, Headsets, Speakers, PS4/ Xbox Controllers

Bluetooth Car Adapter, WOCBUY 3.5mm AUX Bluetooth Receiver for Music Streaming, Wireless Music Audio Adapter with Built-in Mic, Home Stereo, Speakers (Handsfree Car Kits, 16H Playtime, Dual Link)

YMOO Bluetooth 5.3 Transmitter Receiver, 2-in-1 Wireless Bluetooth Adapter,3.5mm Low Latency Audio Adapter,Bluetooth Transmitter for Tv to Headphones, (Upgrade)

1Mii Bluetooth 5.3 Transmitter Receiver for TV to Wireless Headphones, Dual Link AptX Adaptive/Low Latency/HD Audio, Aux Bluetooth Audio Receiver Adapter for Home Stereo, Airplane, Boat, Gym

UGREEN Bluetooth 5.4 Adapter for PC, Bluetooth 5.4+EDR USB Dongle, 5-Devices Connect, Bluetooth Receiver Transmitter for Wireless Keyboard, Mouse, Speaker, Headset, Support Windows 11 10 8.1

UGREEN USB Bluetooth 5.0 Adapter, Wireless Bluetooth Transmitter Receiver for PC, 5 Devices Pairing Simultaneously, Bluetooth Dongle for PC, Laptop,Keyboard,Mouse,Speaker,Printer, Windows 11 10 8.1 7

TP-Link USB Bluetooth Adapter for PC, 4.0 Bluetooth Dongle Receiver (UB400) - Support Windows 11/10/8.1/8/7/XP for Desktop, Laptop, Mouse, Keyboard, Printers, Headsets, Speakers, PS4/ Xbox Controllers

[Upgraded] 1Mii B06 Plus Bluetooth Receiver, HiFi Wireless Audio Adapter, Bluetooth 5.1 Receiver with 3D Surround aptX HD aptX Low Latency for Home Music Streaming Stereo System

Golvery Bluetooth 5.0 Transmitter Receiver for TV, 2 in 1 Bluetooth Aux Adapter for PC/DVD/MP3/Car/Home Stereo/Speaker/Gym, Optical/RCA/AUX Connection

ASUS USB-BT500 Bluetooth 5.0 USB Adapter with Ultra Small Design, Backward Compatible with Bluetooth 2.1/3.x/4.x