Brand Syllable Model G18-001 Quantity 1 Color Black + red Bluetooth Version v4.0 Ear Coupling Headband Talk Time 6~8 Hour Standby Time 320 Hour Operating Range 5~10 meter Compatibility Compatible with iOS Android" Win 7 system. Microphone Yes Radio N/A Supports Music Format MP3 Power Supply Built-in Battery Compatible With Iphone5 Other Features Multi-point connection for audio sharing; Bluetooth v4.0 dual-mode noise canceling headphones; 1.8 times as high-fidelity speakers" shocked sound sense and more powerful low-frequency; The powerful circuit active noise reduction function built-in stereo codec and CSR.CVC (echo cancellation) noise swept away; Dual-microphone headset clearer answering and more comfortable hearing; Folding design for easy carrying and storage; Low power consumption of battery" for long time use. Packing List 1 x Headphones 1 x Audio cable (100cm) 1 x USB charging cable (100cm) 1 x G18 battery 1 x Carrying pouch 1 x Adapter 1 x 2-pin aviation plug 1 x English user manual "