PK18650/26 - 3.7V 2600MAH 18650 LITHIUM ION BATTERY - RECHARGEABLE PKCELL FLAT TOP - PKCELL Karaoke It would close in time

It would close in time under high temperature or got heated  to ensure the safety

Volume frequency regulation

Warranty: 5 years

30 cm tail with pre-terminated N Female connector

extended batterylifeand NFC auto device pairing

PK18650/26 - 3.7V 2600MAH 18650 LITHIUM ION BATTERY - RECHARGEABLE PKCELL FLAT TOP - PKCELL Karaoke It would close in time3. 7V Lithium Ion Rechargeable Battery 18650 2600mAh Flat Top Pack of 1 Features: High Operating Voltage (3. 7V) High energy density, advanced technology provides ultra high capacity Li ion batteries Wide operating temperature range: Charge at 0~45C, Discharge at 20~60C Designed for a safe operation, all batteries are equipped with multiple safety features, including a safe shut down separator and a safety vent. High output and high load