Support Memory Card:NoModel Number:KN319 Bluetooth Audio Transmitter Receiver High Definition Support:None Content:AUDIO WIFI Standard:None Wireless Type:bluetooth Sound Track:Double Interface:3.5mm Origin:Mainland China Certification:CE,FCC,RoHS 2 in 1 Bluetooth Transmitter and Receiver : This product is versatile and can be used as both a transmitter and receiver, making it perfect for various audio needs. RCA and 3.5MM AUX Input : With the ability to input audio through both RCA and 3.5MM AUX, this product is compatible with a wide range of devices. High Definition Sound Quality : Enjoy crystal-clear sound quality with this product's high-definition audio support. Wireless Connectivity : Say goodbye to tangled wires and enjoy the freedom of wireless connectivity with this Bluetooth adapter. Specifications Model: KN319 Technologies: BT5.0 (Upgraded) , A2DP, AVRCP (receiver mode only) Operation Range: Up to 10m / 33ft (without any blocking objects) Charging Time: 2 hours Continuous Use Time: 6 hours (Receiver Mode) / 5 hours (Transmitter Mode) Battery Type: Li-Polymer (200mAh) Maximum: 44 x 44 x 12mmm Weight: 18g Features 1.This extremely portable, lightweight wireless audio transmitter & receiver is an ideal wireless audio solution for a wide range of situations and uses 2.Transmitter mode:wirelessly streams audio from your non-Bluetooth TV, home stereo system, or CD player to your Bluetooth headphones or speakers 3.Receiver mode: wirelessly streams audio from your Bluetooth-enabled phone, tablet, or computer to your wired stereo, speakers, or headphones 4.Switch between transmitter and receiver modes with the simple flick of a switch. Effortlessly connect using advanced Bluetooth technology and 3.5mm audio cable (included). 5.Super-Portable Audio-Streaming Power The KN319 is just 44mm (1.73") across and weighs only 18g (0.63oz), but has got powerful wireless audio streaming capabilities. Slip this transmitter & receiver into your backpack or laptop bag and take it on-the-go without the slightest effort. 6.Broad Compatibility: With the included 3.5mm cable and 3.5mm to 2RCA cable, this Receiver Transmitter adapter can widely be used on your computer, laptop, home stereo system, headphone, smartphone, Mp3 player, CD player, etc. Package Content 1x Bluetooth 5.0 Audio Transmitter/Receiver Adapter 1x Micro USB Power Cable 1x RCA Cable(The RCA Cable will not included if you do not selected) 1x3.5mm To Cable 1x User Manual