Wireless Collar Clip Microphone Three-in-one Three Connector Mini Microphone 35 Hole

Bluetooth version: 4.1

Built-in battery capacity: 50mAh-100mAh (included)

Signal-to-noise ratio: ≥ 100dB

Frequency range: 20Hz-20KHz

Rated Power: 3

Rated Voltage: 5

Appearance size: 15mm

Battery life: 6-8h (included)

Radio head: Capacitor

With a built-in battery or not: Built-in battery