XY-9 TWS Bluetooth 5.0 Earphone

This Bluetooth headset is designed for convenience and comfort. It has a transmission distance of 15 meters and a battery capacity of 30mah for the earphone and 400mah for the charging box. The 10mm True Copper Ring Speaker delivers clear sound with a signal-to-noise ratio of greater than 90db. It has a listening time of 3.5 hours, talk time of 4 hours, and standby time of 120 hours. It takes 50 minutes to charge and has a working current of 5-10MA and voltage of 3.0V-4.2V. The distortion is less than 0.1% and the frequency correspondence is 20-20KHZ. It supports SBC and AAC FHSS protocols and has a transmit power of 4dbm. The speaker impedance is 32 Euros and the carrier frequency is 2.4GHZ. The charging compartment size is 5.6 * 4.67 * 2.32 cm and the headphone size is 19.5 * 34 * 19.4.0mm. The single weight is 135g. It has in-ear detection, single and double ear use, switch song, adjust volume, summon Siri, pause/play, and answer phone functions.