Bluetooth Adapter 5.4 Free drive Desktop computer external USB Bluetooth receive and transmit Bluetooth5.4

Product name: USB Bluetooth adapter
Model: BT542
Bluetooth version: Bluetooth 5.4
Transmission distance: 20 meters (barrier-free environment)
Support protocols: A2DP,HSP,AVRCP,HID,ACC, etc
Packing size: 9*12* 0.9cm
Packing weight: 18 g

5.4 Bluetooth, dual-mode dual-channel,
Compatible with Bluetooth 2.0, 3.0, 4.0, 5.0, 5.1 and 5.3 specifications.
Smart low power chip, RF transceiver, provides low latency flexible and powerful Bluetooth applications
Support Cass2 Power level 20m distance (open environment)
Support Bluetooth 5.4 dual-mode specification (LMP 13.X True Bluetooth 5.4 standard)
Supports USB2.0/3.0 interface
Supports simultaneous connection of multiple devices (up to 7 devices)
Operating temperature -20 to 70℃
Supported operating system: Windows 8.1, 10, 11 (no driver, plug and play) Windows 7 installation driver can be used
Supported protocol :HFP/HSP(hands-free phone/headset)A2DP/ AVRCP(stereo music)HID/HOGP(keyboard and mouse)/ACC. Android smartphones, etc

General Specification:
Bluetooth Specification
Standard: Bluetooth V5.4
Profiles: Bluetooth low energy
Dual-mode Bluetooth
Frequency Band= 2.402G-2.480G
Sensitivity: -86dBm@.01%BER
RF TX Power: +6dBm(Class P)
Supply Voltage: 5V DC(MAX5.75V)
Working Current: Depends on profiles, 22mA typical
Standby Current (Connected) : 0.4uA
Temperature: -20℃ to +70℃
Humidity: 10%-90% Non- Condensing
Environmental RoHS Compliant

Features:
1.5.4 Bluetooth adapter, support no-drive, plug and play
2. Can connect 7 different devices at the same time low latency, no delay
3. High-performance Bluetooth 5.4 chip, support Bluetooth dual mode, 3Mb/s high bandwidth and higher transmission rate: lower delay, low power loss, strong anti-interference
4. Support EDR/BLE dual mode, stereo audio transmission
5. Compatible with a variety of Bluetooth versions of the device 20 meters long distance transmission, strong signal
6. Upgrade the memory function. A connection is automatically connected back without complicated operations
7. Unique digital audio enhancement algorithm, sampling rate up to 44.1KHZ. Support SBC, HIFI sound

Packing list:
Adapter *1
manual *1
blister color card packing