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3Keys dongle is designed to transmit audio signal of tv,dvd, mp3 etc to bluetooth earphones or speakers by the bluetooth wireless technology. It can also be used in receiver mode to create normal speakers into bluetooth speakers. To help you to realize higher quality wireless household lives, easy operation, connect the product with audio players by a audio cable, without set up after the device turn on. 2-in-1 companion this bluetooth audio transmitter & receiver is the ideal wireless audio solution for a wide range of applications. Broadcast audio output from your tv or old portable cd player to wireless speakers on the other side of the room without cumbersome cable management. Use the wireless receiver function to upgrade your audiophile home stereo system and wirelessly stream music from your phone or tablet. Bluetooth 4.1 compatibility audio devices with 3.5mm audio jack or rca audio input/output ports, and bluetooth compatible devices like smartphones, tablets, and laptops. Specifications: bluetooth version: v4.1 frequency range: 2480mhz bluetooth range: up to 33 feet(10M) battery: built-in rechargeable li-polymer battery(600mAh) working time: up to 8 hours charging time: about 2h input/output connecting mode: 3.5mm stereo audio port compatibility: compatible with phones and pad of android / ios system,and all the bluetooth audio devices. Please note: 1) this is a mono transmitter. Bluetooth requires line of sight, meaning both devices should be visible to each other without any obstructions. If a person moves between the transmitter and receiver, you will get disturbance break in sound.
Despite its compact design, this gadget has an excellent battery life: the transmitter holds up to 10 hours and the receiver up to 9 hours
This wireless audio transmitter and receiver supports aptx low latency technology, effectively removing bluetooth transmission delays and allowing seamless synchronization of audio and video
With superb audio quality, this 2 in 1 bluetooth transmitter and receiver works perfectly with any audio device, from hi fi and car stereos to tvs and pcs
This device cant be connected to 2 bluetooth headset in one time and the effective distance of any bluetooth device is 10 meters. Bluetooth requires line of sight
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