Wireless Car Bluetooth Receiver Transmitter Bluetooth Adapter Hands Free Calls

The built-in battery lasts up to 16 hours.
Keep pairing with 2 wireless devices at the same time.
The built-in microphone can be used to answer hands-free calls.
The latest noise-cancelling technology provides excellent call quality.
Compatible with most wireless-enabled devices such as smartphones, tablets, laptop and computer.
Pair with phone/mp3/tablet etc, turn your old car stereo/house stereo/3.5mm wireless wired headphones.
Wireless version: 5.0
Frequency range: 2.4GHz
Output power class: class2
Wireless Mode: HFP/HSP/A2DP/AVRCP
Wireless Range: Wider than 33 feet
Battery: 250mah
Working current: 15-20MA
Charging voltage: DC/5v
Charging current: 150MA
Product size: about 50 x 50 x 20mm