This receiver can widely be used on your computer, laptop, home system and so on. It has super portable Audio-streaming power that allows you to this transmitter and receiver into your backpack or laptop bag and take it on-the-go without the slightest effort. Features - Color: Black. - Material: Plastic. - Size: About 9.8 x 5.8 x 1.3 cm/3.86x2.28x0.51inch. - Made of , very sturdy and durable. - Extremely portable, lightweight transmitter and receiver is an for a wide range of situations and uses. - Transmitter mode: wirelessly streams audio from your non- TV, home stereo system, or CD player to your headphones or speakers. - Receiver mode: wirelessly streams audio from your -enabled phone, tablet, or computer to your stereo, speakers, or headphones. - Widely be used on your computer, laptop, home stereo system, headphone, smartphone, Mp3 player, CD player, etc. Specifications Support: A2DP, AVRCP, HFP, SPP Receive working current: <= 43MA Transmitting working current: <= 60MA Standby current: ﹤ 18MA Transmission rate: 21 (Mbps) Working frequency: 2.4 (MHz) standard: 5.0. Built-in battery: polymer 600MAH Charging current: 300MA Endurance time: > distance: >10M (open space) Charging method: Micro USB 5V / 0.5A Output connection: 3.5MM stereo interface Input connection mode: 3.5MM stereo interface Compatible: , IOS mobile phones and PAD, and devices, audio equipment with audio input interface Package list: 1 x wireless transmitter/receiver kit