Computer-installed Bluetooth wireless connection to headphones/speakers;
Upgrade the Bluetooth function of old computers/laptops to break space constraints
Built-in ceramic antenna, barrier-free 5-10 meters long-distance transmission anti-interference ability, more stable signal

Product name: Digital display Bluetooth adapter
Bluetooth version: V5.0+
Frequency range: 2400-2483.5MHz
Frequency response: 10Hz-20KHz
Input parameters: DC 5V-500mA
Host weight: about 68g
Charging time: about 1 hour
Interface type: AUX/RCA/USB/TF
Effective distance: 10 meters without obstacles
Battery capacity: 3.7V/400mAh lithium battery
Signal-to-noise ratio: 90dB
Peripheral support: U disk/TF card
Bluetooth protocol: HFP/A2DP/AVRCP
Format: MP3/WAV/WMA/APE/FLAC
Product size: 100x54x33(mm)
Colour:black
Material:plastic

Package Contents:
1 x Bluetooth receiver
2 x Audio cable
1 x USB charging cable
1 x Manual in English and Chinese