Feature(may vary by option.)

●Super battery life: this Bluetooth aux adapter has a very long battery life, built-in 250 mAh battery, can last 6 hours, standby 60 days, charge with the USB port, fully charged in only 2 hours, can be used while charging, flexible use.
●Bluetooth 5.0 and stable connection: car Bluetooth 5.0 receiver can receive Bluetooth signal within 10 metres, lossless music playback and stable call signal, so you can have a pleasant music environment while driving.
●Compact and practical: product size 64 x 37 x 12 mm, weight 11 g, compact size, easy to carry, accept/transfer two in one, can be converted with a key. You can easily carry this portable wireless Bluetooth adapter with you for the car.
●Lossless sound quality: this Bluetooth adapter supports A2DP,AVRCP,HFP,HSP and other specifications of audio resolution, with CVC energy noise reduction technology to remove noise, clearer sound quality, so you can enjoy the lossless sound quality of the music. Can also convert non-Bluetooth devices into Bluetooth devices for wireless connection, suitable for cars, speakers, stereos and headphones.
●Easy to use: this Bluetooth transmitter can be connected to the AUX port of other devices and talk or listen to music via the Bluetooth connection, just press the power button to answer/hang up the phone, play/pause music, and also support volume control and song change.

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