Item type: Bluetooth Transmitter Transmission Distance: up to 10m (no obstacle) Color: Black Main Item Weight: 12g / 0.39oz Main Item Size: 6.6 x 2.7 x 0.9cm / 2.59 x 1.06 x 0.35in Bluetooth Version: 4.0 Package Include: 1 x Bluetooth Transmitter 1 x 3.5mm Audio Cable