Specifications: This extremely portable, lightweight wireless audio transmitter and amp; receiver is an ideal wireless audio solution for a wide range of situations and uses. Transmitter mode: wirelessly streams audio from your non-Bluetooth TV, home stereo system, or CD player to your bluetooth-compatible headphones or speakers. Receiver mode: wirelessly streams audio from your Bluetooth-enabled phone, tablet, or computer to your wired stereo, speakers, or headphones. Switch between transmitter and receiver modes with the simple flick of a switch. and nbsp; Effortlessly connect using advanced bluetooth-compatible technology and 3.5mm audio cable (included). Slip this transmitter and amp; receiver into your backpack or laptop bag and take it on-the-go without the slightest effort. Broad compatibility: with the included 3.5mm cable and 3.5mm to RCA cable, this receiver transmitter adapter can widely be used on your computer, laptop, home stereo system, headphone, smartphone, MP3 player, CD player, etc. and nbsp; Item Name: Transmitter/Receiver Adapter Material: ABS + Silicone Technologies: BT4.2, A2DP, AVRCP (Receiver Mode Only) Operation Range: Up to 10m/33ft (Open Space) Charging Time: 2 Hours Continuous Use Time: 6 Hours (Receiver Mode)/5 Hours (Transmitter Mode) Battery Type: Built-in Li-Polymer Battery(200mAh) Size: 4.4cm x 4.4cm x 1.2cm/1.73 and quot; x 1.73 and quot; x 0.47 and quot; (Approx.) and nbsp; Notes: Due to the light and screen setting difference, the item and 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. and nbsp; Package Includes: 1 x Transmitter/Receiver Adapter 1 x 3.5MM Audio Cable 1 x RCA Audio Cable 1 x Charging Cable and nbsp; 1 x User Manual Transmitter/Receiver Adapter ABS + Silicone Transmitter/Receiver Adapter Transmitter/Receiver Adapter ABS + Silicone