Bluetooth Audio Receiver 4.1 with 3.5mm Jack, Hands Car Kit, Bass Boost, Aluminum Design for Speakers

Compact aluminum Bluetooth 4.1 receiver with builtin amplifier and bass boost. Converts any device with a 3.5MM audio input into a wireless audio system for headphones, car stereos, home stereo, PC speakers, and earbuds. Designed for hands music and calls with a singlebutton control to switch between music and phone. Key benefits Add wireless audio to nonBluetooth devices quickly and simply using the 3.5MM AUX jack. Improved call clarity with a sensitivity microphone and integrated noise cancelling chip. Small, durable aluminum housing and lightweight 0.55oz mini design for easy portability and longterm use. Bass boost option plus builtin amplifier for fuller sound from older speakers or headphones. Reliable Bluetooth 4.1 connection with support for A2DP, AVRCP, HSP, and HFP for stable streaming and remote control. Specifications Bluetooth version: Bluetooth 4.1 Supported profiles: A2DP, AVRCP, HSP, HFP Charging voltage: DC 5V Charging time: up to 1.5 Hours Working time: up to 5 Hours Connection range: 10M / 30ft Headphone jack: 3.5MM Material: aluminum Color: black Weight: 0.55oz What it does Streams audio from smartphones, tablets, laptops, and Bluetooth transmitters to any device with a 3.5MM input. Lets you answer and make calls hands using the builtin microphone. Adds amplifier and bass boost to improve sound on headphones, car stereos, and home speakers. Typical use scenarios In the car: plug into an older vehicle stereo AUX input to stream music and take calls without replacing the factory head unit. With headphones: turn wired headphones into wireless models for commuting, travel, or workouts while maintaining better bass response. Home or desktop audio: connect to an older home stereo, bookshelf speaker, or PC speaker to stream music from a phone or laptop. Simple operation and care Onebutton control to play, pause, and switch between music and phone calls. If the unit will not power on first use, fully charge for up to 1.5 Hours and try again. Do not expose the receiver to temperatures above 45 degrees Celsius or prolonged direct sunlight to avoid reducing service life. Follow input voltage guidance and use the specified DC 5V charger to prevent damage. This compact Bluetooth receiver is a practical addon for making wired audio systems wireless, improving call usability, and adding a simple bass and amplifier boost without replacing existing equipment.