Wireless tooth folding headset( ) The product is shipped based on the color or size of the main image of the product page. ur: rose gold s: Product name: Bluetooth headset Bluetooth version: Bluetooth V4.0 + EDR version of A2DP 1.2 and AVRCP 1.0 profiles supports s Bluetooth headset and hands-free profile (HFP 1.5) RF Frequency Range: 2.402-2.480 GHZ, ISM 2.4G Radio representation: receives the sensitivity of -84dB / 0.1% BER SNR: 95dB Li-pol 400 mAh Rechargeable Speaker driving unit: 40mm Impedance: 32 Frequency: 20Hz ~ 20 KHz Micro: omnidirectional micro HD Distortion: 0.1% l charging time: about 2-2.5 hours Talk time: up to 10 hours dby time: up to 250 hours Compatibility: for mobile phone, tablet, PC, laptop, MP3, MP4 etc. s: white ornage, pink white, white, green white, red white, , Blue, Orange, , Red Characteristics: 1. tooth 4.0: adopt the international high-end chipset tooth 4.0 CSR, it can create HD audio and a wide frequency response rrom 20Hz to 20kHz, lower power consumption, superior compatibility, compatible for almost all mobile phones, tablet PCs, laptops, all devices with tooth function 2. support for TF card playback and FM Radio function: with an SD card slot, a small SD card is enough to enjoy the music anytime and where; has an FM Radio function, allowing you to listen to Radio anywhere, anytime (note: FM Radio may not work in some foreign countries). 3. smart hands-free speaking: Built-in hidden high-definition sensitive microphone, the headset itself Has an incoming phone call answer button to pick up a phone call, talking wireless handsfree. 4. ior Cancellation Performance: Acoustic echo cancellation and noise reduction effectively reduce ambient noise by speaking, making the distant listener unable to hear what you say is becoming history, just like talking face to face. 5. foldable design and comfortable wearing experience: foldable design, the is super lightweight, based on ergonomic design, green leather , providing you with a comfortable wearing experience. 6. Working distance: 10mm without obstruction like building or magnetic field 7. device: Mobile phone with tooth function, for , phone, PC, for etc. Package list: 1 x Bluetooth et 1 x USB charging cable 1 x User