UGREEN Wireless Bluetooth 5.0 Receiver HiFi Sound 3.5mm AUX Adapter

• Advanced Bluetooth 5.0 and CSR chip: Making music playback and conversation smoother and clearer than ever
• Convenient hands-free calling and voice assistant: The built-in microphone makes it easy to talk with family and friends. Great for hands-free calling while driving. Hands-free controls let you focus on driving
• Connect to two devices: With this receiver, you can connect two phones at the same time and easily switch between music and calls
• Long battery life: With up to 9 hours of talk or play time, or 300 hours of standby time, you'll have plenty of power for even the longest family trips

Specification:

• Bluetooth version: 5.0
• Output interface: 3.5mm audio
• Battery capacity: 300mAh 3.7V
• Charging time: about 2 hours
• Output power: 28mW RL=16?
• Frequency range: 2.402GHz-2.480GHz
• Frequency Response: 20Hz-20kHz
• Signal-to-noise ratio: >90dB