LANSKLBD Nuovo originale TWS Wireless Bluetooth Headset Sport Stereo In Eer Earbuds Cuffie Mini Auricolare per IOS Android Phone

Features: 1. True wireless Bluetooth headset: separate body, single or two, free to wear; storage and charging box; 2. Professional sport Bluetooth headset: it will not fall in violent sport activities, so you can exercise while listening to music; no fear of sweat; high-definition sound quality; 3. IPX5 waterproof, anti-sweat, not easy to get dirt: nano-molecular surface, anti dust and dirt; 4. Touch design: change the traditional key control mode, the use of touch design is more convenient; 5. Charging and storage box: convenient storage and charging, no worry about no electricity in long time outdoor activities; 6. Mini earphone: more compact and secret, lighter design; 7.Bass boost calculation, Hi-Fi sound quality output; 8. Intelligent DSP noise reduction technology to make clearer phone call; 9. Smart voice reminder, broadcasting headset status; 10. Multi-intelligent compatibility, support most mainstream Bluetooth devices; Specifications: Supported protocols: Headset / headfree / A2DP / HFP / HSP / AVRC Product size: about 23 x 12 x 26mm Storage and charging box size: about 92 x 40 x 31mm Bluetooth version: V4.2 Voice prompt: support Operating range: 10 meters Battery capacity: 50mAh polymer lithium battery Charging box battery: 500mAh Operating voltage: 3.2V- 4.2V Sound unit: 8mm moving coil speaker Speaker impedance: 32 ohms Speaker sensitivity: 105db Speaker frequency: 20Hz- 20KHz Microphone sensitivity: -42± 2db Bluetooth frequency: 2.4- 2.48GHz Music duration: about 2.5 hours (actual measurement) Talk time: 3 hours (actual measurement) Standby time:80 hours Package: 1 Set