UGREEN CM403 2in1 Aux Wireless Bluetooth Adapter

Wire-free audio for every device, every destination — the UGREEN CM403 2-in-1 Bluetooth 5.0 Wireless Adapter is the award-winning Red Dot Design adapter that does it all. Switch effortlessly between receiver (RX) and transmitter (TX) modes to transform any non-Bluetooth speaker, car stereo, or TV into a wireless audio device, or add Bluetooth to your Nintendo Switch and stream to headphones instantly. With dual device pairing, AAC/SBC HIFI audio support, a built-in hands-free microphone, 8 hours TX battery life, and a compact TPU bend-resistant plug — this is the most versatile 3.5mm Bluetooth adapter available today.

• Bluetooth 5.0 Technology: Reduced power consumption with fast, stable transmission for reliable wireless audio connectivity.
• 2-in-1 TX/RX Modes: Toggle freely between transmitter and receiver modes to suit any audio setup or scenario.
• Airplane & Travel Ready: Plugs into any 3.5mm AUX port on airline seats, treadmills, and gym equipment wire-free.
• Dual Device Pairing: Simultaneously connect two Bluetooth devices for shared music or calls with family and friends.
• AAC & SBC Audio Support: HIFI-quality audio decoding in RX mode for crystal-clear, rich, and detailed sound reproduction.
• Built-In Microphone: Hands-free calling, voice navigation, and safe driving supported in RX mode with built-in mic.
• 8-Hour TX Battery Life: Up to 8 hours in transmitter mode and 5.5 hours in receiver mode on a single charge.
• USB-C Fast Recharging: Convenient USB-C charging port fully recharges the 145mAh battery in just 1.5 hours.
• TPU Bend-Resistant Plug: Flexible, durable plug design withstands repeated bending across multiple environments.
• Red Dot Design Award Winner: Internationally recognised for outstanding compact design and engineering excellence.

The UGREEN CM403 is the most versatile wireless audio adapter you can buy — a Red Dot Award-winning 2-in-1 that works equally brilliantly in your car, on a plane, connected to your TV, or paired with your Nintendo Switch. With dual device pairing, HIFI AAC audio, hands-free calling, and a compact bend-resistant build, it's the one adapter that genuinely covers every audio scenario you'll ever encounter. Note: not compatible with AirPods Pro 2.

• Brand: UGREEN
• Model: CM403-80893
• Working Modes: Receive (RX) + Transmit (TX) — toggle button switching
• Bluetooth Version: 5.0
• RX Protocols: A2DP, AVRCP, HFP
• TX Protocols: A2DP
• Audio Encoding (RX): SBC, AAC
• Audio Encoding (TX): SBC
• Operating Frequency: 2.402GHz – 2.480GHz
• Transmission Distance: Up to 10 metres
• SNR: 90dB
• Audio Port: 3.5mm AUX
• Charging Port: USB-C
• Battery Capacity: 145mAh
• TX Operating Time: Up to 8 hours
• RX Operating Time: Up to 5.5 hours
• Charging Time: Approximately 1.5 hours
• Simultaneous Connections: 2 devices
• Memory Card Support: No
• Apt-X Support: No
• AAC Support: Yes
• Sound Track: Stereo (Double)
• Built-In Microphone: Yes — hands-free calls supported in RX mode only
• Indicator Light: Yes
• Plug Design: TPU bend-resistant
• Note: Phone calls supported in RX mode only. Not compatible with AirPods Pro 2
• Award: Red Dot Design Award Winner
• Certifications: CE, FCC, SRRC, IC, TELEC, UKCA, BQB
• Origin: Mainland China
• Compatibility: Car stereos, home speakers, TVs, Nintendo Switch, airline seats, treadmills, and any 3.5mm AUX device