Wireless Earbuds, TWS Bluetooth Earphones, Wireless Headphones in Ear I7S Tws Wireless Bluetooth Earphone Features: 1. Can listen to music and answer calls. 2. Incoming telegram number, last code callback, fully intelligent Chinese and English sound prompts, power on, pairing, power off and disconnection, the phone will have voice prompts, etc. 3. Can connect 2 mobile phones at the same time. 4. Every time the Bluetooth headset is connected to the mobile phone and turned off, when the Bluetooth headset is turned on, it will automatically connect back to the mobile phone, which is more convenient and faster. 5. Intelligent compatibility: support all Bluetooth-enabled mobile phones, tablets, notebooks, singing bars, Q music, movies, etc., universal all mobile phones. Model: i7s-TWS Bluetooth Protocol: TWS Bluetooth 5.0 Speaker: High-quality true copper ring speaker Charging Time: 0.5h Standby Time: about 100h Music Playback Time: 2-3h Talk Time: 3-4h Headphone Battery Capacity: 45mAh Charging Case Battery Capacity: 350mAh Bluetooth Distance: 8-15m Function: Support Music, Power Display, Voice Control, Call Function Standard Configuration: Dual Earphone + Charging Case + USB Charging Cable + Manual + Packing Box