• 【Bluetooth-compatible 5.3 Technology】Advanced Bluetooth-compatible 5.3 ensures faster response, more stable connections, and improved compatibility with modern devices.

• 【Plug and Play Design】Driver-free installation for Windows 7/8.1/10/11 systems, simply plug into USB port and start connecting devices instantly.

• 【Smart Memory Function】Automatically reconnects to previously paired devices after restart, eliminating the need for repeated pairing setup.

• 【Multi-Device Connection】Connect up to 7 devices simultaneously for efficient multitasking and seamless device switching.

• 【20-Meter Coverage Range】Extended transmission range up to 20 meters provides stable wireless connection throughout your workspace or home.

• 【CD-Quality Audio】Supports A2DP, SBC, and AAC protocols to deliver high-fidelity audio streaming with CD-like sound quality.

Specifications:

• Model: TQ-BT03A
• Frequency Range: 2.4GHz~2.4835GHz
• Output Voltage: DC 5V
• Interface Type: USB-A
• Transmission Rate: 3Mbps
• Compatible Systems: Windows 7/8.1/10/11
• Firmware Version: HCI 12.565 / LMP 12.459
• Supported Protocols: A2DP/SBC/AAC/HSP/AVRCP/HID
• Product Size: 27mm × 16mm × 8mm
• Working Temperature: -5°C ~ 55°C
• Storage Temperature: -10°C ~ 65°C
• Working Humidity: 40% ~ 60%
• Storage Humidity: 30% ~ 75%