Bluttoth T14d

High Quality Chip for Stereo Sound and Bass Sound .Clear High & Low Volume . It's Easy To Take and Make Calls ,Voice Dialing with Superior Microphone Quality. Ideal for Car Calling and Friends Chatting, or Working Use. Speaker specifications: Φ8mm 2 HI-FI stereo Frequency response: 50-20KHz Power consumption: 8mA Transmission distance (accessibility): 20M Signal to noise ratio: 95dB Distortion: <0.5% Battery specification: 3.7V/50mAh with protection board Charging time: 1-2 hours (powered by battery compartment) Play time: 4-8 hours Standby time: 200+ hours Silicon microphone sensitivity: -40dB ±1dB Support A2DP AVCTP AVDTP AVRCP EDR Headphone weight: 4g Charging battery: 3500 mAh Packing materials: 2 x Bluetooth Headset 1 x Charge Box 1 x USB Charger Cable