Condition: 100% Brand New Item Type: Wireless Headphone Model: A7S Material: ABS Color: Black Program: 5.0 Usage Mode: Key Battery: Monaural Capacity 40mAh Charging Box 300mAh Using Time: Headphone 3.5-4 Hours Charging Box Headphone Charging Time: 3 Bluetooth Version: V5.1+BR+EDR+BLE Signal Distance: 10M(No Barriers Ideal Case) Support Mode: for a2dp/avctp/avdtp/avrcp/hfp/spp/smp/att/gap/gatt/rfcomm/sdp/L2cap Weight: Approx. 64g Package List 1 x Charging Box 2 x Headphone 1 x Charging Cable 1 x English Chinese Manual 1Music dream from now on, stereo surround, ultra high sound quality. 2Automatic connect and starting up pairing, pick up and automatic starting up, turn on the bluetooth of the phone and automatically pair with the phone. 3Daily life waterproof, sweat-resistant and dustproof, support rainy day, outdoor sports, fitness room. 4Ears high definition calls, smart noise reduction, let you open the way of chat, clear call effect. 5Magnetic induction closing, no need to press hard, easy to open the cabin door, greatly enhance the use experience, solve the traditional buckle storage compartment opening trouble embarrassment. 6Cinema 8D surround stereo, built-in new generation of bluetooth chip stable transmission, moving coil horn and metal diaphragm to enhance the engine output, let the sound better. 7Single/double can used freely, two earphones can connected to the same mobile phone at the same time, or a single earphone can connected to use, equivalent to two separate earphones. 8Lightweight and compact, easy to carry, comfortable to wear without hurting ears.