TWS E7S Bluetooth 5.0 Wireless Headset (Black) The earphones are small and light, but the speakers are a bit larger, giving the sound a wide range. It's convenient that the remaining battery power of the charging case is displayed. ・Hands-free calling with microphone ・Noise canceling ・The remaining battery power of the charging case is displayed. ・Ergonomically designed to reduce stress on the ears and prevent swelling. ・Intelligent control for easy touch operation. ・IPX4 waterproof performance, suitable for outdoor sports on rainy days. ・Delicate design, portable and compact, easy to carry. ・Material is ABS, size is 6x4x3cm. ・Speaker size is 8mm. ・Battery capacity is 50mAh, power consumption is 9mAh, can play for 5-6 hours, and can be fully charged in about 1 hour. ・The charging case has a large-capacity polymer battery with a 40-hour standby time and a capacity of 200mAh, allowing the earphones to be charged 6 times, and can be fully charged in about 1 hour. 【How to Operate】 Power ON/OFF: 　Long press the left and right buttons Play/Pause: 　Press the left and right buttons Previous song: 　Long press the left button for 2 seconds Next song: 　Long press the right button for 2 seconds Volume up/down: 　Up / Press the left button twice 　Down / Press the right button twice I have charged and tested it once. *Due to the low price, it will be shipped in simple packaging. Other features... Noise canceling