What's in the box:

Portable Wireless Audio Transmitter BT 5.0 Adapter Compatible with Switch Support Dual Connection/Voice Return/aptX HD/LL Black (Standard)

Features:
Upgraded BT 5.0 Chip,it provides stabler connection.
It supports connecting with 2 headsets at the same time, enabling you to share with your friends together.
Equipped with type-C to USB cable, compatible with more devices.
It supports transmitting voice through BT to communicate only when using the BT headset with mic.
With ultra-thin body, small size and high configuration, it offers stable transmission with low latency.

Specification:
Product name: Wireless Audio Transmitter
BT version: V5.0
CODEC(TX): apt-X HD, apt-X LL, apt-X, SBC
Input interface: Type-C/USB A(tranfer cable)
One device connected indicator: A or B light is always on
Two device connected indicator: A and B lights are on at the same time
Operating temperature: -10~55
Working distance: 8m(without obstruction)
Operating frequency range: 2.402GHZ-2.480GHZ
Compatibility: Support Switch and Switch base mode, PS4, PC audio transmission
Item size:4.9*1.5*0.5cm / 1.93*0.59*0.2in(L * W * H)
Item weight: Approx.4.7g /0.17oz
Package size:9*7.6*1.8cm / 3.54*2.99*0.71in(L * W * H)
Package weight:30g /1.06oz

Packing list:
1 * Wireless Audio Transmitter
1 * Type-C/USB A Adapter
1 * User Manual