Material: Acrylic
Size: 40 * 30cm
Bluetooth version: 4.1
Battery capacity: 180mA lithium battery
Distance: within 10 meters
Frequency: 20-20KHZ
Impedance: 32 ohms
Sensitivity: 95DB
Charging time: 2H
FEATURES:
Stylish Bluetooth music collar, you can phone, intimate warmth