12.5mm Dynamic Drivers cased in ergonomically designed comfort fit earbuds 16 Hours Playtime under optimum audio setting Quick Charging - 10 min of charge provides one 1 Hour playtime and while overall charging takes less than 2 Hours Multi-Point Connectivity allowing seamless switch between two devices, Enjoy lossless quality music with Bluetooth 5.0 Audio Specifications : Frequency response 20 Hz – 20 kHz ; Impedance 20 ohm ; Sensitivity 118 dB SPL@ 1kHz 1mW ; Microphone sensitivity -25 dBV/Pa @1kHz With 3 Button remote, access Hands-free calling or enable Voice Assistance activation on your mobile device Durable Tangle-free flat cable for comfortable wear and carry What’s in the box: 1 x Tune 215BT headphones, 1 x Charging Cable, 1 x Warranty Card, 1 x Warning Card, 1 X Safety Sheet, 1 x QSG Sheet