ZHAOYAO I7S TWS Bluetooth 4.1V Transmission Distance 10-15 M Wireless Bluetooth Dual Ear Earphones Mouse Desktop Full Size keyboard: No

Desktop Full Size keyboard: No Package: Yes Wrist Support: No Operation Style: Conductive Rubber Keyboard Standard: Mini Keyboard Type: 2

NB-IoT/eMTC/EDGE/GPRS/GNSS HAT for Raspberry Pi

1 * 4-digit 7-seg LED (small)

Charging Time: About 2 hours

ZHAOYAO I7S TWS Bluetooth 4.1V Transmission Distance 10-15 M Wireless Bluetooth Dual Ear Earphones Mouse Desktop Full Size keyboard: NoBluetooth version: 4. 1 version Transmission distance: the direct distance outside is 10 15 meters Battery capacity: polymer lithium battery 55mAh Listen to music time: 2. 5 hours up and down pause playback Talk time: 2 hours Standby time: 130 hours Charging time: 1 2 hours Working current: 22MA Standby current: 4uA Bluetooth class : class2 and class3 Band band: 2. 4 2. 485ghz Modulation process: GFSK Maximum transmission power: +2DBm Color White