I7s Tws Twins Bluetooth Earbuds With Charging Box

i7S TWS Twins Mini Bluetooth 4.2 Dual Wireless Stereo Airpods with Charging Dock Product Description: 1. listening to the song correct, support songs and call, 2. remind call number, the last call back, all intelligent Chinese and English voice prompts, boot, pair, shut down the phone power will be low voice prompts; 3. Power capacity will show on your iPhone, you can see the power situation anytime, do not worry about the electricity ,make your life without worry; 4. One to two connections, can be connected to two mobile phones at the same time 5. Bluetooth headset connected to the phone after the shutdown , and then open the Bluetooth headset will connect back to the phone automatically , more convenient; 6. Intelligent compatibility: support all Bluetooth mobile phone, tablet, notebook, singing it, QQ music, movies, etc., universal all mobile phone Specification: 1. Driver: 15mm 2. Impedance: 32 OHM 3. Bluetooth version: Bluetooth v4.2 + EDR 4. Bluetooth use band: 2.4GHz 5. Power level: CLASS II 6. Output power: 30mW 7. Bluetooth distance: 10 meters barrier 8. Frequency response: 20-20000Hz 9. Operating voltage range: 3.0V-4.2V 10. With A2DP / AVRCP high quality stereo audio transmission and remote control protocol 11. Powerful noise de-noising circuit (active noise reduction) 12. switch between Chinese and English (boot does not connect Bluetooth state, press the switch 2 times, hear the tone switch successfully) 13. Talk time is about 4-5 hours 14. music time about 4-5 hours 15. Standby time is about 8 hours How to Twin Connect: 1. Press and hold two earbuds 3 seconds and release after the LED flashes between Red and Blue. (Voice Notice: Power on - Wait Connection) 2. Double click any one earbuds button (not both), two earphones will automatically pair with each other.  Pair: 1. For initial use, press and hold the button for 3 seconds of either earbud and release after the LED flashes between Red and Blue. (Voice Notice: Power on - Wait for Connection) How To connect: You have to on both simultaneously till the light of both turns red blue and then press single 1 until it lights goes of and then connect to Bluetooth as i7s tws. Then both will connect automatically. 

Weigh (each): 4 g, charging case: 38 g, dimensions  (each): 16.5 x 18.0 x 40.5 mm, charging case: 44.3 x 21.3 x 53.5 mm