3.5mm

Specifications:
Model: S1 Spread name: Nillkin S1
Call function: Support Play mode: AUX-in, Bluetooth
Channel system: Single channel Control mode: Buttons

Technical Parameters:
Bluetooth: Bluetooth CSR 4.0 Transmission range：≤10m
Frequency range：2.24~2.48GHZ Frequency response: 80Hz-20KHz
Rated power: 3W Speaker specification: Ø42mm 4Ω 3W
SNR: ≧75dB Bluetooth mode: A2DP/AVRCP/HFP/HSP
Distortion: ≤1% Audio format: MP3/WMA/WAV/FLAC/APE
Power input: 5V/ 500mA AUX: 3.5mm Audio interface
Battery: 800mAh Power interface: USB micro
Play duration: ≥5h(Depends on volume and audio content)