Bluetooth Audio Receiver 4.1 with 3.5mm Jack, Wireless Streaming, Bass Boost, Hands Calling for Car and Home Stereo

Aluminum Mini Bluetooth 4.1 Receiver with Amplifier and Bass Boost Compact wireless audio receiver that converts any device with a 3.5 mm input into a Bluetooth sound source. Built from aluminum in a small bullet design, this receiver adds wireless streaming, hands calling, and a bass boost option to car stereos, headphones, speakers, home stereos, PCs, and earbuds. Key benefits Add wireless streaming to wired audio systems: plug into any 3.5 mm AUX input to play music from a phone, tablet, laptop, or Bluetooth transmitter. Clear hands calling: built in sensitivity microphone and noise cancelling chip improve call clarity while you drive or work. Simple one button control: switch between music and phone calls with a single button for fast, intuitive operation. Portable and durable: lightweight 0.55 oz aluminum body and compact form factor for easy carry and long term use. Tunable sound: built in amplifier plus a bass boost option enhances low end on older or low power speakers and headphones. Key specifications Bluetooth version: V4.1, supports A2DP, AVRCP, HSP, HFP Effective range: up to 10 m / 30 ft Headphone jack: 3.5 mm Charging voltage: DC 5V Charging time: up to 1.5 hours Working time: up to 5 hours Weight: 0.55 oz Material: aluminum Integrated noise cancelling chip and microphone Compatibility Works with most Bluetooth enabled smartphones, tablets, laptops and Bluetooth transmitters Converts non Bluetooth car stereos, headphones, older home stereo systems and PC speakers to wireless audio Typical use scenarios In the car: plug into the stereo AUX jack for wireless music streaming and hands calling on drives. At home: add Bluetooth capability to a bookshelf or vintage stereo to stream playlists from a phone or tablet. With headphones or earbuds: use the receiver to remove cable restrictions and enable wireless listening plus a bass boost option. Practical notes If the receiver will not turn on initially, fully charge the battery and try again. Avoid exposing the device to temperatures above 45 C or direct sunlight to protect battery life. Use the specified DC 5V charging input to prevent damage. This compact Bluetooth receiver offers a straightforward way to upgrade wired audio gear with wireless playback, hands calling, and enhanced bass in a small, aluminum package.