Features:
This extremely portable, lightweight wireless & receiver is an ideal wireless solution for a wide range of situations and uses.
mode: Wirelessly transfer from your non-BT TV, home stereo system, or CD player to your BT headphones or speakers.
Receiver mode: Wirelessly transfer from your BT-enabled phone, , or computer to your wiRed stereo, speakers, or headphones.
With the included 3.5mm cable and 3.5mm to 2RCA cable, this Receiver adapter can widely be used on your computer, , home stereo system, headphone, , Mp3 player, CD player, etc.
Switch between and receiver modes with the simple push of a switch. Effortlessly connect using advanced BT technology and 3.5mm cable (included).

Specifications:
Model: KN321
Technologies: KN321: BT5.0, A2DP, AVRCP (receiver mode only)
Operation Range: Up to 10m / 33ft (without any blocking objects)
Pairing name:KN321
Charging Time: 2 hours
Working Time: RX: 6 hours ; TX: 5 hours
Ba-tte-ry Type: Li-Polymer (200mAh)
Dimensions: 44 × 44 × 12mm 
Weight: 18g
Package Size: 18 * 12 * 1cm / 7.1 * 4.7 * 0.4in
Package Weight: 65g / 2.3oz

Package List:
1* /Receiver Adapter
1* Micro USB Power Cable
1* RCA Cable
1* 3.5mm Aux Cable
1* User Manual