What's in the box:

Wireless BT Receiver Standard 3.5mm Jack Stereo BT Audio Music Receiver Adapter for Speaker Car Aux Hands Free Kit (Standard)

Simply connect your speaker/headset with our device, immediately transform your speaker/headset into a fashionable wireless BT speaker/headset.

Features:
Connect your device for instant BT connectivity.
A wireless experience.
Portable and easy to use.
Highly compatible with iPhone, Android, and other A2DP BT devices.
Connects through a 3.5 mm outlet.

Specifications:
Material: plastic
Color: black
BT version: 4.1
Transmission range: up to 10m
I/O ports: 1 * 3.5mm port, 1 * mini USB port
Power supply: DC 5 V
Charge time: 30 minutes
Operation time: 4 hours
Item size: 5.8 * 1.5 * 1.5 / 2.3 * 0.6 * 0.6in
Item weight: 10g / 0.4ounce
Package size: 6 * 3 * 2cm / 2.4 * 1.2 * 0.8in
Package weight: 20g / 0.7ounce

Package list:
1 * Adapter