Brand New Lenovo GM1 Gaming TWS Earphones Wireless Game HeadphonesLenovo GM1 was created for gaming. The earphones fit well in the ears. The headphones are designed to make it easier for the microphone to pick up your voice. There are several divisions at the charge box. Each glowing bar indicates 25% charge.FUNCTIONSThere is the system of touch control in the earphones. To increase volume, click and hold the bottom at the right headphone. To decrease, click and hold bottom at the left headphone. Double click at the right earphone will switch next the track. Double click at the left headphone will switch the previous track. High quality of the sound because of the AAC code. It is a wideband audio coding algorithm. This algorithm is one of the best for audio signal transmission. DSP noise suppression. The special microprocessor in the earphones is suppressing background noise, overcoming the echo and boosting the low frequencies.FEATURESLow signal delay, about 65 ms. For example, ordinary earphones have 150 ms signal delay. Special chip in the earphones allows to transmit a signal over a distance of 15 meters. Battery life is about 6 hours.SPECIFICATIONSProduct model: GM1Wearing type: In-EarMaterial: ABSWith microphone: YesBluetooth version: 5.0Supported profiles: HSP/HFP/A2DP/AVRCPFrequency response: 20-20kHzSpeaker size: 13mmBattery capacity earbud: 30mAhCharging box: 320mAh