What's in the box:

Wireless Transmitter and Receiver 3.5mm Audio Jack 2-in-1 Audio Receiving Device for TV/Speaker/Earphone (Black)

This product is a two-in-one BT device set to receive and launch signal.This product is simple, which is able to launch and receive all the radiosignal freely through BT reception mode. You can send the phone music to thetraditional home audio equipment. It is more convenient to send TV, CDplayer, MP3 or other sources to the BT speaker or BT headset through theproduct. Due to the low latency technology of the product, it also supportsreal-time sound transmission of the online game, television and film. Thishas built-in rechargeable battery, which has long battery life. It solvesthe limitations of audio equipment perfectly and extends a variety of audioequipments.

Features:
2 in 1 Device
This device switches cable signal into BT and transfer to earphone andreceive wireless signal and transfer to wired audio via BT connection.

Support TWS
This item supports one device to connect two phones, such as one phoneconnects two speakers.

Wide Compatibility
The receiving terminal supports all smart phones with Android and iOSsystem. The transmitting terminal supports most BT speakers.

Not Disturb Others
This device is quite helpful. If you want to watch a soccer game, but afraidof disturbing others, then you can connect TV with BT headsets with thisdevice. It solves the problem that the TV cannot connect BT earphone.

Enjoy Wonderful Music
Some speakers cannot connect with phones. Use this device to play music inyour phone through the speaker. Let your speaker be alive.

Note: This device has built-in battery. Please charge it fully for the first-time use.
1. Plug the Micro USB cable in the device and the other end connects USBoutput device, such as phone adapter and laptop USB interface.
2. The charging time is around 2 hours.
3. Red light on when charging. Light off after full charging.
4. Charge the device and play music together is supported.

Specification:
BT version: 4.2
BT protocol: A2DP?AVRCP
Decode format: MP3, WAV, WMA, APE, FLAC
Transmission distance: >20m/65.62ft
Voltage: DC 5V
Power: 3.7V
Working time: Above 10hr
Charging time: 2hr
SNR: 95db
Item size: 6.2 * 4 * 1cm / 2.44 * 1.57 * 3.93in(L * W * H)
Item weight: Approx.17g / 0.60oz
Package size: 11.5 * 8.5 * 1.8cm / 4.53 * 3.35 * 0.71in(L * W * H)
Package weight: 59g / 2.08oz

Package list:
1 * Receiver and Transmitter 2 in 1
1 * User manual
1 * USB cable
1 * 3.5mm audio cable