--Bluetooth-compatible v5.0

--The sending status supports simultaneous connection and playback of two Bluetooth-compatible devices

--Support Bluetooth-compatible reception/support Bluetooth-compatible transmission

--Clear all connected Bluetooth-compatible information

--Automatically connect back to the paired Bluetooth-compatible device after power on

Features:
Automatically shut down if there is no device connection for five minutes
The playing time of the full power music is about 7 hours
Bluetooth-compatible supports A2DP, AVRCP, HFP, HSP
Support Bluetooth-compatible stereo music DSP technology
Auxiliary input/aud output

Description:
Name: Bluetooth-compatible Receiver Transmitter
Charging voltage: 5V
Charging current: 150mA
Working current: 35mA
Shutdown current: 41uA
Charging time: about 2 hours
Working time: about 7 hours
Battery capacity: 280mAh
Bluetooth-compatible version: version 5.0
Bluetooth-compatible sound processing: with DSP technology and A2DP (advanced distribution profile) function
Bluetooth-compatible frequency: 2.402-2.480GHz
Bluetooth-compatible transmission distance: straight line 10M
Bluetooth-compatible microphone effective distance: 0.5 ~ 2M
Bluetooth-compatible transmission output power: 6dbm
1. Transmission mode (TX)
It can connect two Bluetooth-compatible devices at the same time, and get source input from AUX port Bluetooth-compatible headsets, Bluetooth-compatible speakers and other devices through Bluetooth-compatible transmission
2. Receive (RX)
Two Bluetooth-compatible devices can be connected to receive the Bluetooth-compatible signal at the same time, and output to the speaker/wired headset through the AUX port
Packing list:
1 x host
1 x instructions
1 x 3.5mm audio cable
1 x Micro-USB charging cable
1 x English packaging
Note:
Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. 
Manual measuring,please allow 1~3mm error,thank you.