Bluetooth Audio Receiver 4.1 for Car Stereo and Headphones, Hands Call, Bass Boost, 3.5mm Jack

Compact Bluetooth audio receiver with amplifier and bass boost for headphones, car audio, speakers, home stereo, PC, and earbuds Turn any device with a 3.5 mm audio input into a wireless sound source. This aluminum Bluetooth 4.1 receiver connects to smartphones, tablets, laptops, and Bluetooth transmitters to stream music or take calls without swapping cables. A onebutton control switches quickly between music and phone calls, while a builtin amplifier and selectable bass boost improve playback on older systems and compact speakers. Key benefits Add wireless streaming to nonBluetooth devices including car stereos, wired headphones, home stereo systems, and computer speakers. Clear hands calling with a sensitivity microphone and integrated noise cancelling chip. Better sound from small systems thanks to the builtin amplifier and bass boost option. Lightweight, durable aluminum housing and mini bullet design for easy portability and discreet installation. What it does Receives Bluetooth audio and outputs via a standard 3.5 mm jack. Supports common Bluetooth profiles for music playback and call control: A2DP, AVRCP, HSP, HFP. Onebutton operation for pairing, playback control, and answering calls. Stable connection up to 10 m 30 ft. Key specifications Bluetooth version: V4.1 Charging voltage: DC 5V Charging time: up to 1.5 hours Working time: up to 5 hours per charge Connection range: 10 m 30 ft Headphone jack: 3.5 mm Material: aluminum Weight: 0.55 oz Noise cancelling chip integrated Builtin microphone Amplifier and bass boost option Practical use scenarios Vehicle: Plug into your car stereo aux input to stream music and take calls without changing the factory wiring. Headphones and earbuds: Convert wired headphones into wireless headphones for commuting or workouts. Home and PC audio: Add Bluetooth to older home stereo systems, bookshelf speakers, or desktop speakers for convenient streaming from a laptop or tablet. Important notes and care If the device does not power on the first time, charge fully and try again. Avoid exposing the receiver to temperatures above 45 C or prolonged direct sunlight to protect battery life. Use the specified DC 5V charging input to prevent damage. This compact Bluetooth audio receiver is a practical solution for adding wireless streaming and hands calling to a wide range of audio devices while improving sound with an onboard amplifier and bass boost.