Quick Guide

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Note:
1. Please tap the red circled area.
2. Please hold the blue circled area for unwanted taps.
Product Name DOLFIN
Model CK1
FCC ID
POT-TWSCK
BT Device Name Dolfin
Bluetooth Version
5.1
Supported Protocol
HFP|HSP|A2DP|AVRCP|SPP
Supported Audio CODEC AAC/SBC
Connection Distance
10 – 30 meters (dependent on environment)
Driver Unit 13.1 mm
MIC Sensitivity
-38 dBV/Pa
Frequency Response
16 Hz ~ 20 KHz
Battery Type Li-ion Battery
Capacity
25 mAh
（
earphone
）
/ 350 mAh
（
charging case
）
Duration
About 3 hours (earphone) / About 24 hours（with charging case
）
Charging Time
About 1 hour
（
earphone
）
/ 2 hours
（
charging case
）
Input 5V==1A
Weight 3.15 gram (single earphone)
3. Cautions
1) If you use the earphones for the first time, please read this quick guide first and keep it
Specifications
Tap Here
Hold Here