Specification:
Bluetooth version: V4.0
Frequency response: 20 ~ 20 000Hz
Bluetooth frequency: 2402 MHz ~ 2480MHz
Bluetooth profiles supported: HFP, HSP, A2DP and AVRCP
Bluetooth range: up to 30 feet
The distortion degree: < 0.5%
Charging input: DC 12V-24V
Charging output: DC 5V/2.1A (Max)