What's in the box:

Bluetooth 5.0 Transmitter & Receiver 2-in-1 Wireless 3.5mm Audio Transmitter Adapter for TV Laptop Home Sound System (Standard)

Features:
[Multi-compatible]
It can be compatible with most BT devices on the market like TV, laptop, computer, radio, notebook, etc.
[BT 5.0]
It ensures stable transmission to BT devices from up to 10m/33ft.
[Compact Size]
Space-saving & portable, great for both home and travel use.
[Simple Operation]
Easy to use, fast for you to set up.
[3.5 mm Cord]
Designed for using off the back of a TV audio jack.

Specification:
Product Type: Transmitter & Receiver
Model: BT4866
BT Version: BT 5.0
Color: Black
Material: Plastic
Frequency Range: 2.4GHz-2.480GHz
BT Range: Accessible 10 Meters
BT Protocol: A2DP_V1.3
Working Voltage: DC 3.2-4.2 V
Working Current: 24mA
Working Time: about 22H
Battery Capacity: 180mAh
Charging Voltage: DC+5V
Charging Time: about 1.5H
Item Size: Approx. 4.3 * 4.2 * 1.3cm / 1.69 * 1.65 * 0.51
Package Size: Approx. 11 * 8 * 3.4cm / 4.33 * 3.15 * 1.34oz
Package Weight: Approx. 98g / 3.46oz

Package List:
1 * Transmitter Receiver
1 * 3.5MM Audio Cable