Feature: 1. The earphone supports angle adjustment and is comfortable to wear. It fits into the ear and is easy to carry. 2. Strong and clear sound, micro USB charging port. Large capacity battery, low power consumption, long standby time. 3. Noise reduction function, whether in a call or when listening to music, can get a clear sound. Can be placed in the car or outside the car to chat. 4. Mini PTT button and Bluetooth adapter. With the wireless PTT button, you don't have to hold the walkie talkie all the time to talk at any time. 5. The Bluetooth headset can be used alone, you can use it to charge your smartphone, listen to music, and make calls. Specification: Item Type: Bluetooth Earphone Material: ABS Bluetooth Version: V4.0 Frequency Range: 2.4G Working Mode: HFP1.5/A2DP /AVRCP Charging Time: 1-2.5H Charger Interface: Micro USB Talking Range: <Approx. 10m/32.8ft Working Time: 3-4 Hours Standby Time: <100 Hours Built-in Lithium Battery: Wireless Adapter 400mAh, Earphone 90mAh, PTT Button 300mAh. Package List: 1 x PTT Button1 x Bluetooth Earphone1 x Wireless Adapter1 x Manual1 x Charging Cable1 x Tie1 x Ear Cap