Cloud Fox Alexa Bluetooth Headphones, in-Ear Magnetic Wireless Earbuds with Mic, IPX5 Sweatproof Neckband Earphones for Sports, Superior Sound Quality, Bluetooth 4.2, Noise Canceling, 8 Hours Playtime

CLOUD FOX H1 Alexa Wireless Bluetooth Earphones Hello Alexa! Built with Amazon Alexa and Audio's Active Voice recognition technology. Voice command made simple. One-touch access to Amazon Alexa. Wherever you go, Alexa goes. Doss Sound+ APP Download the DOSS Sound+ app from the APP Store (iOS system) or Google Store (Android system). IPX5 Waterproof and Sweat-proof Let you enjoy the joy of sports, Feel freely sway your sweat. Long Battery Life Built-in 120mAh Li-ion Battery, can support 6 hours music playtime and 180 hours standby time. Product Specifications: Bluetooth version: V4.1 version Receiving distance: 10 meters/33 ft Operating frequency: 2.42GHz ~ 2.480GHz Frequency shift: GFSK, TT / 4 DQPSK, 8DPSK Signal to noise ratio: >75db Distortion: <1% Input: DC5±0.25V Battery: 3.7V / 120mAh Working voltage: 3.7V (3.3-4.2V) Charging time: 2H Electrical impedance: 16?±15% Play time: 6H (Varies by volume level and content) Standby time: 180H What's In The Box: 1 x Cloud Fox H1 Bluetooth Headphones 1 x USB Charging Cable 3 x Earbuds?S / M / L? 1 x User Manual